Episode 564: Special Guests Franz and Lars Discuss Model S and X's Legacy
Ride the Lightning: Tesla and EV Podcast
Episode 564: Special Guests Franz and Lars Discuss Model S and X's Legacy Ride the Lightning: Tesla and EV Podcast · May 24, 2026
Episode 564: Special Guests Franz and Lars Discuss Model S and X's Legacy

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Episode 564: Special Guests Franz and Lars Discuss Model S and X's Legacy
Tesla Model S
Car

Tesla Model S

The Tesla Model S is an all-electric car that runs on batteries instead of gasoline. It’s one of Tesla’s early, important models and is often talked about because it was a flagship EV. In this episode, it’s mentioned in the context of its history and retirement.

Tesla Model X
Car

Tesla Model X

The Tesla Model X is an all-electric SUV. It’s known for having special rear doors and for being a more premium Tesla model. The episode mentions it because it’s part of Tesla’s history and is being retired.

Term

signature series edition

A “signature series edition” is a special limited version of a car. In this episode, it’s mentioned as the final versions delivered before the Model S and Model X were retired.

Company

Tesla Fremont factory

The Tesla Fremont factory refers to Tesla’s manufacturing site in Fremont, California, where vehicles are produced. When an episode ties an event to this factory, it usually signals a production milestone—like final deliveries—rather than just a marketing presentation.

Concept

retirement of the SNX

“Retirement” means the SNX model is being phased out. The hosts mention it because it affects what people own and how common each model is.

Model Y
Car

Model Y

The Tesla Model Y is Tesla’s most popular car. It’s a crossover, and the hosts mention it because it sells more than the other Tesla models.

Model 3
Car

Model 3

The Tesla Model 3 is Tesla’s popular electric car. The hosts bring it up because some listeners in the poll own one.

Term

service

Here, “service” means getting the car repaired or maintained. The point is that EV ownership is easier when the service process is smooth.

Term

extended warranty plan

An extended warranty plan is extra coverage after the original warranty ends. It can help pay for certain repairs so you’re not stuck with the full cost later.

Term

signature delivery event

A signature delivery event is a branded customer handoff experience where the manufacturer presents the vehicle and related activities around delivery. It’s not a technical car term, but it’s a specific EV retail/ownership process being referenced in the episode.

Concept

sunset these cars

“Sunset” just means Tesla decided to end the model’s run. They’re asking who pushed for it and how people reacted internally.

Concept

Euro NCAP updates their protocols

Euro NCAP is a safety testing organization. They update their crash tests over time, and the tests get harder—so car makers may need to change their cars to keep the same safety scores.

Concept

five star crash safety protocols

A “five-star” rating means the car did very well in crash tests. They’re saying Tesla’s updates helped the Model S and Model X meet the safety rules at the time.

Term

IHS

IHS is an organization that helps evaluate vehicle safety. Here, it’s mentioned as another place that uses crash scenarios to judge how safe a car is.

Term

structural updates

“Structural updates” means changing the car’s main body parts that take crash energy. It’s the difference between the car’s body being designed for one kind of crash versus another.

Term

offset cases

“Offset” means the car hits something not straight-on, so one side takes more of the impact. Safety systems and the body structure have to handle that uneven crash load.

Term

small overlap

“Small overlap” means a crash where only part of the front of the car hits something. That kind of crash can be harder on the car’s structure, so safety design has to account for it.

Concept

massive overhaul

A “massive overhaul” means a big redesign, not just small changes. The idea is that the original design needs major work to meet tougher safety expectations.

Term

pilot factory

A “pilot factory” is a smaller, early production site used to validate a new manufacturing process before scaling up. For automotive platforms, it can be used to work out tooling, assembly steps, and quality control for new structural designs.

Term

autonomous

Here, “autonomous” means the car can drive on its own. It’s about software and sensors doing the driving instead of the person behind the wheel.

Concept

mini refresh

A “mini refresh” is a smaller update to a car partway through its life. Think tweaks like new looks or updated features, not a completely new model.

Brand

France blue

“France blue” sounds like a named paint color option for the car. It’s basically a way to offer a new look as part of an update.

Topic

shutting the line down

“Shutting the line down” means stopping production at a factory line. The interesting part here is that they kept improving the cars even as they were preparing to end that production.

Term

48 volt

“48 volt” means the car uses a higher-voltage electrical system for some of its electronics. The goal is usually better efficiency and more capability for features that need extra power.

Concept

total redesign

A “total redesign” means making a car from the ground up instead of just updating parts. It’s a bigger, more expensive change that can affect how the whole car is built and controlled.

Term

vehicles per square foot

This is a factory efficiency measure: how many cars you can build for each unit of floor space. Higher numbers generally mean the plant is using its space more effectively.

Term

Cybercap

Cybercap sounds like an internal Tesla manufacturing approach or technology. The point they’re making is that it’s more efficient than the older Model S/X production setup.

Term

render

A render is a computer picture of the car. It can look slightly different from the real paint once you see it in person.

Concept

replicate the original signature series

They’re trying to bring back an older special paint look, but make it better with newer paint know-how. It’s like updating a classic color so it looks even nicer today.

Term

paint shops

Paint shops are the dedicated facilities where cars are prepared, coated, and finished. Improvements in paint shops—process control, equipment, and workflow—can directly affect color consistency and the final appearance of the clear coat and base color.

Term

Ultra Red

Ultra Red and Multicore Red are two different red paint options. They’re saying Ultra Red looks better than Multicore Red.

Term

Multicore Red

Multicore Red is an older red paint color they’re comparing against. The point is that newer paint work can make the color look better.

Term

body matched door handles

“Body matched” means the door handles are painted the same color as the car. It’s done to make the car look more seamless instead of having a different-colored handle.

Term

spot matching to the paint

“Spot matching” means they repaint just a small area and try to make it match the existing paint color. The goal is for the repaired spot to be hard to notice.

Concept

final signature series

A “final signature series” is basically a limited, special batch of cars made to wrap up a certain version or time period. Here, they’re explaining how they decided how many to build based on who they thought would want to buy them.

Term

plaid powertrain

“Plaid powertrain” means the high-performance drivetrain in Tesla’s top versions of the Model S and Model X. It’s what helps the car feel especially fast because it controls the motors and how power is delivered.

Term

350 total cars

They mention “350 total cars,” which sounds like a limited number of vehicles for that specific version. They’re using it to talk about how many of those cars go to certain buyers.

Term

over-the-air updates

Over-the-air updates are software updates that get sent to your car wirelessly. The point here is that your Tesla can improve over time instead of staying exactly the same after you buy it.

Term

rear-wheel drive

Rear-wheel drive means the power goes to the back wheels. That can change how the car grips the road and how it feels to drive compared with all-wheel drive.

Ford Falcon
Car

Ford Falcon

The Ford Falcon is a car model that can be used as a family vehicle. In the episode, it’s mentioned because the doors can make it easier or harder to put kids into car seats. The discussion is about how the car works in everyday situations.

Term

Falcon doors

“Falcon doors” are the Model X’s doors that open upward. They can make it easier to reach into the car when you’re putting kids in car seats.

Delorean DMC-12
Car

Delorean DMC-12

The DeLorean DMC-12 is a sports car with a very recognizable look. In the episode, it’s mentioned because the speaker owned one and it was a dream car. The conversation is about personal connection and the car’s story.

Mercedes-Benz Amg Sls
Car

Mercedes-Benz Amg Sls

The Mercedes-Benz SLS AMG is a high-performance sports car made by Mercedes. The episode mentions it because only a limited number were built, making it rarer than many cars. That rarity is part of why people talk about it.

Term

battery shells

In an EV, the battery sits inside a protective case. A “battery shell” is basically that outer case/enclosure.

Term

spare parts

Spare parts are extra pieces kept around so you can fill in gaps quickly. In this story, they’re used to make cars look complete in showrooms.

Concept

startup mentality

This phrase means the “make it work” attitude you often hear in early companies. They didn’t have finished cars yet, so they improvised with what they could find.

Term

acceleration

Acceleration just means how fast the car speeds up. With electric cars, it can feel especially strong because they can deliver power right away.

Term

400 Newton meters

“Newton meters” is a way to measure how much twisting force the motor makes. More torque usually means the car can feel quicker when you press the accelerator.

Term

600 Newton meters

Newton-meters are a way to measure how much twisting force the motor produces. The higher the number, the harder the drivetrain is being “twisted” under load.

Term

half shafts

Half shafts are the parts that send power from the drivetrain out to the wheels. In this story, too much torque caused the half shafts to fail.

Term

splines

Splines are the “teeth” or ridges that help two parts lock together so torque can be transferred. They’re saying those spline connections failed under the extra stress.

Term

inverter

The inverter is the electronics box that turns battery power into the right kind of electricity for the motor. In this story, it’s part of how they got more power out of the car.

Company

NTN

NTN is a parts supplier. Lars had to convince them to update the half-shaft spline design and validate it so the cars could be built without that failure.

Term

power upgrade over the air

This means the car can get more power after you install an update, like downloading new software. It changes how the electric motors are controlled so the car feels quicker.

Term

motor shaft

The motor shaft is the part inside the motor that spins and sends that spinning motion onward. It’s part of the path that ultimately makes the wheels turn.

Term

production line

A production line is the factory process where a car gets built step-by-step. Here, they’re talking about fixing issues while the cars were being made.

Term

Fabergé

“Fabergé” is being used like a nickname for something that’s unusually special and carefully finished. In this conversation, it’s the name they give to the very notable car they’re talking about.

Term

quality issues

In car manufacturing, “quality issues” means problems that cause the finished cars to come out wrong or inconsistent. In this story, they’re talking about fixing those problems on the production line.

Company

Elon

“Elon” here means Elon Musk. The story is that he stepped in to help push improvements in how the cars were being built and how they looked.

Term

paint quality

Paint quality is how well the car’s paint job turns out. It can include whether the color looks right and whether the surface is smooth and consistent.

Term

drive unit

The drive unit is the main electric system that turns battery power into motion. Think of it like the EV’s motor-and-gear assembly that drives the wheels.

Concept

prototype test with wheels spinning

They describe an early validation step: getting the wheels spinning to confirm the powertrain and controls are working. This kind of “first motion” test is common in EV development because it reduces risk before driving on public roads.

Concept

test track

A test track is a special driving area where engineers can test cars safely and repeatedly. It helps them see how the car behaves when you drive faster or push it harder.

Term

wheelspin

Wheelspin is when the tires spin but don’t really move the car forward as efficiently as they should. It usually shows up when you accelerate hard and the tires can’t grip the road.

Term

firmware

Firmware is the software that’s built into the car’s computers. It tells the car how to react—like how it controls power to the wheels—so getting it “right” can change how the car drives.

Term

lugs

“Lugs” are the wheel fasteners that hold the wheel to the car. They’re saying they changed those wheel connections to solve a problem the software was having.

Term

FSD

FSD means “Full Self-Driving.” It’s Tesla’s computer software that tries to help the car drive more on its own, but you’re still expected to pay attention and be ready to take over.

Topic

Motor Trend Car of the Year award

This is an annual award from Motor Trend that recognizes a standout car. They’re bringing it up to show the Model S was taken seriously by major car publications.

Term

lithium ion batteries

Lithium-ion batteries are the rechargeable batteries that power most electric cars. They’re what let the car store electricity and drive on it.

Term

touchscreen

A touchscreen is the main screen you use to control the car’s features. In EVs, it often replaces a lot of physical buttons.

Term

over the year updates

This means the car can get improvements over time. Instead of only changing with a new model, the software can be updated so the car improves after you buy it.

Term

driver profiles

Driver profiles let multiple people save their preferred settings. So when you get in, the car can automatically adjust to your preferences.

Term

efficiency

Here, “efficiency” means how far the car can go using the energy in its battery. More efficient cars usually get more range.

Term

EV tire lines

EV tire lines are special tires made for electric cars. They’re often designed to waste less energy as the tire rolls, which can help the car go farther.

Term

supercharger network

The supercharger network is Tesla’s network of fast charging stations. It helps EV owners travel farther without worrying as much about running out of battery.

Company

Reno factory

The Reno factory is where Tesla made batteries at scale. The point is that it helped batteries become cheaper and more practical for EVs.

Company

Gigafactory one

Gigafactory one is Tesla’s big battery factory. The hosts are saying it massively increased battery production, which helped lower costs for EVs.

Concept

global EV adoption

Global EV adoption is a way of describing how many electric cars are being sold and used around the world. The hosts are basically saying EVs have gone from almost nothing to a meaningful portion of the market.

Concept

dual-motor setup

A dual-motor setup means the car has two electric motors. That can help the car grip the road better and manage power more effectively to the wheels.

Term

ludicrous

“Ludicrous” is Tesla’s name for a more aggressive performance mode. It’s basically the car’s “go as fast as possible” setting for acceleration.

Concept

structural bits and integrity

This phrase is about the car’s frame and body strength—how safe it stays in a crash. They’re saying changes to fit new drivetrain or battery parts can affect that strength, so engineers have to redesign carefully.

Term

all wheel drive

All-wheel drive means the car can send power to more than just the rear or front wheels. In this story, adding AWD required extra drivetrain parts, which had to fit through the car’s frame.

Term

tower of cells

A “tower of cells” is how the battery cells are physically stacked inside the car. They’re saying the battery design got more efficient, so the team didn’t need as much space as they originally planned.

Term

redundancy

Redundancy is like having a backup plan. If one part fails, the car can still keep going because it has other ways to drive.

Term

four motors

Using four motors typically means one motor per wheel, or at least a four-motor architecture that can precisely control torque at each axle or wheel. That can improve traction, stability, and performance by letting the vehicle “vector” power to where it’s most effective.

Term

Nürburgring

The Nürburgring is a well-known race track in Germany. People use it to compare how fast cars really are on a demanding course.

Porsche Taycan
Car

Porsche Taycan

The Porsche Taycan is an electric car designed for performance. It’s the kind of EV that’s built to drive quickly, including on demanding roads or tracks. The episode mentions it in connection with Nürburgring performance and a top trim.

Term

carbon ceramics

Carbon-ceramic brakes are high-performance brake parts made to handle lots of heat. They’re often used on faster cars because they can keep braking strong during hard driving.

Brand

Corvette kit

They mention a “Corvette kit” as a source for brake parts. The idea is they borrowed a proven performance brake setup from the Corvette world for their testing.

Chevrolet Corvette
Car

Chevrolet Corvette

The Chevrolet Corvette is a sports car built for performance. In this episode, it comes up in connection with performance brakes, specifically carbon-ceramic style brakes. That’s the kind of upgrade people use when they want stronger braking for fast driving.

Term

all four brakes were on fire

They’re saying the brakes got so hot that they started burning. That can happen when the car is braking extremely hard and the brakes can’t cool down fast enough.

Term

braking stop

A “braking stop” just means one hard stop—slowing down quickly. If you do it extremely hard on a track, the brakes can get dangerously hot.

Term

1865

“1865” is a specific battery cell size Tesla was using at the time. They’re comparing it to newer cell formats to explain how battery tech improved over time.

Term

energy dense

“Energy dense” means the battery can store more energy in the same space (or weight). That usually helps the car go farther on a charge.

Term

4680s

“4680s” are Tesla’s bigger cylindrical battery cells. Using a larger cell design can help the battery pack store more energy and be made more efficiently.

Term

720s

“720s” sounds like a specific test setup or target they used while running the car on the Nürburgring. The excerpt doesn’t fully explain what “720s” means, but it’s clearly part of their track testing discussion.

Mclaren 720S
Car

Mclaren 720S

The McLaren 720S is a very fast sports car built for performance. The episode mentions it in the context of driving it on a demanding track like the Nürburgring. It’s brought up because it’s capable of being pushed hard.

Concept

making trades

“Making trades” means you can’t do everything at once, so you choose what to focus on. Here, they’re saying they had to decide where to apply the best battery tech first.

Term

2170s

“2170s” are a newer, larger rechargeable battery cell type than the older 18650. The discussion is about switching to this newer battery format and why it’s better to build.

Term

wire bonding

Wire bonding is a way factories electrically connect parts inside a battery. The point here is that the older, smaller cell design is harder to make because it needs this more delicate process.

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