MP 1716: The Week In IndyCar Listener Q&A July 27

IndyCar racing refers to the open-wheel racing series in the United States run under the IndyCar banner. It’s known for high-speed oval racing, road/street courses, and a spec-chassis ecosystem where teams compete using a common platform from a constructor like Dallara.

Dallara is an Italian race-car constructor, and the “2028 Dallara” refers to the next IndyCar chassis that will be introduced for the 2028 season. In IndyCar, the chassis is the core vehicle platform that teams build around, so a new Dallara typically brings major aerodynamic and structural changes.

“Musical chairs” is a metaphor for how IndyCar seats can shuffle around when contracts end, teams change ownership, or drivers become available. When one driver moves, it can trigger a chain reaction where multiple seats open up and others get filled or left out.

“On the grid” means a driver is entered and qualified to start the race—i.e., they’re officially part of the starting lineup. In IndyCar talk, it’s shorthand for whether a driver will be competing in the season’s races rather than being sidelined or replaced.

The speaker is using “A grid” as a tiered way to describe the Indy 500 as the top-priority, most important starting opportunity. It’s not a standard technical term like “grid position,” but it’s a motorsport shorthand for which events are the biggest deal for being in the lineup.

IMSA is the International Motor Sports Association, which runs North America’s premier sports-car racing series. It features multi-class endurance racing, where prototypes and GT cars race together on the same track.

LMP stands for Le Mans Prototype, a class of purpose-built race cars designed for endurance racing. In IMSA, LMP cars compete against other classes, typically with different rules and performance targets.

GT Daytona refers to a GT (grand touring) class used in IMSA’s sports-car racing structure, historically associated with the Daytona portion of the series’ class naming. These are production-based race cars, typically slower than prototypes but still highly competitive.

Peter Rossi is referenced here as the driver’s manager, involved in negotiating and securing contract terms. In motorsport, a manager’s role often includes sponsorship alignment, team negotiations, and career planning.

An “ironclad deal” is a strongly worded contract arrangement intended to be hard to change or exit. In racing, multi-year deals can affect when a driver can move teams and how stable their seat is.

Hongkos Hollinger Racing is the team name mentioned as the destination for the driver’s contract. In IndyCar and IMSA, team identity matters because it ties to engineering resources, car programs, and how competitive the entry can be.

“IndyCar level” refers to the competitive tier of IndyCar racing, where drivers are judged against the top field in the series. The speaker contrasts being competitive in other series versus being “elite” specifically at IndyCar.

Chip Ganassi Racing (often shortened to Ganassi) is a top-tier IndyCar team. It’s known for long-term driver and crew stability, which can strongly affect how smoothly a team operates and how it plans for seasons.

Scott Dixon is a highly accomplished IndyCar driver, strongly associated with Chip Ganassi Racing. In IndyCar, a driver’s team relationships and contract status can drive major crew and personnel moves when they switch teams.

McLaren is a major motorsport organization that competes across multiple racing series. In IndyCar context, the mention implies a driver/team transition where IndyCar personnel (like crew members) may relocate to support the move.

Penske Entertainment is the IndyCar-related business unit the host ties to Mark Miles during a discussion about calendar expansion. It’s the organization behind IndyCar operations and event planning under the Penske umbrella.

Mark Miles is identified as IndyCar CEO and also CEO of Penske Entertainment in the host’s conversation. His role matters here because he’s the executive discussing whether international races could be added to the IndyCar calendar.

A street course event is a race held on public roads that are temporarily closed and modified with barriers, signage, and track markings. It typically has tighter corners and less runoff than a purpose-built road course, which can make setup and safety planning more challenging.

Barcelona is referenced as the location for a potential IndyCar calendar addition, specifically tied to the Circuit de Barcelona-Catalunya. It’s a well-known European motorsport venue area, making it a plausible candidate for international expansion.

“Goaña in Brazil” appears to be a mis-transcription of a Brazilian venue name the host considers ready for IndyCar calendar expansion. The key point for listeners is that it’s being discussed as an existing road course option, not a brand-new street race.

The Richmond Oval is mentioned as a potential alternative venue if Washington, DC does not return to the IndyCar calendar. An “oval” implies a track shape built around high-speed left turns, which is a different challenge set than road courses or street circuits.

Bud Denker is described as Roger Penske’s number two and a long-standing staff member involved with events. In this segment, he’s cited as saying a specific venue (Richmond Oval) is not on the calendar for next year.

Milwaukee is being referenced as the IndyCar venue that currently hosts a double header. A double header means two races on the same weekend at the same track, which can be changed if the schedule shifts.

A double header is a race weekend format where two separate races are held at the same venue. In IndyCar, it’s often used to fit more events into a calendar without adding entirely new locations.

CTMP is the Canadian Tire Motorsport Park in Canada, a road course used for major motorsport events. The host is discussing it as a potential IndyCar destination, but notes it would require significant safety upgrades to meet IndyCar standards.

Safety upgrades are track modifications intended to reduce risk for high-speed racing—such as improvements to barriers, runoff areas, and other safety systems. IndyCar often requires venues to meet specific safety criteria before adding them to the schedule.

A livery is the car’s paint scheme and sponsor graphics. The “Kmart Andretti livery” refers to a historically recognizable Andretti Autosport-style look associated with Kmart sponsorship.

“Marlboro Chevron colors” refers to a classic motorsport color scheme associated with Marlboro sponsorship and Chevron branding. The host is using it as an example of how throwback liveries could dominate a field if drivers choose their favorites.

A livery is the car’s painted design and sponsor/branding layout. “Papaya orange livery” specifically refers to McLaren’s signature orange scheme, which the host uses as a visual link to early McLaren history and team identity.

The IR28 is a race car platform associated with IndyCar/Indy-style open-wheel competition, discussed in the context of when it will begin mass production and what production output might look like. It’s the kind of topic that comes up because the timing of production affects when teams can receive cars and how quickly the new spec can spread across the grid.

A delivery pecking order is the priority ranking for which teams/customers receive products first. In this context, it refers to how IndyCar teams might be scheduled to receive the new “28” cars once production begins.

Validation testing is the phase where engineers confirm the design meets requirements and that the system works as intended. Here, the host says mass production timing depends on whether upcoming confirmation/validation testing proves everything works properly, with no redesigns or additional testing needed.

Prototypes are early, pre-production versions used to test and validate a new race car concept. The host says the cars being tested “potentially this week” are DeLara prototypes, implying they’re not the final mass-produced units yet.

The DW12 is a specific IndyCar-era race car model that teams receive as part of the series’ rollout process. In the podcast context, it’s being used as a reference point for how quickly teams might get their first cars for the next generation, with expectations tied to production timing.

In IndyCar, the primary car is the team’s main race entry car for that event. It’s typically the car set up for the specific track, while other cars are reserved for contingencies.

A spare car is a backup IndyCar that a team keeps ready in case the primary car is damaged or otherwise can’t be used. Teams often set the spare up for the same event so they can switch quickly.

An engine deal is the contractual arrangement between an IndyCar team and an engine manufacturer. It covers which manufacturer supplies the engines and how long the partnership runs.

A “tie up” here means a formal partnership between a team and a manufacturer. In motorsport context, it usually refers to aligning team operations with a specific engine supplier.

Andretti Global is a major IndyCar team organization discussed here in the context of potential engine-manufacturer partnerships. The name is used as a team identity in the IndyCar/engine-supplier relationship.

Chevy refers to Chevrolet as an engine-manufacturer partner in motorsport. Here it’s mentioned as one possible manufacturer involved in IndyCar team partnerships.

Cadillac is mentioned as a potential engine-manufacturer partner in the IndyCar engine-deal reshuffling. In racing terms, that implies a team could switch to a different manufacturer supply relationship.

Honda is mentioned as a potential engine-manufacturer partner for IndyCar teams. The context is whether teams might reshuffle engine deals for the 2028 car.

A gap year is an extra contract year that bridges between major deal cycles. The speaker suggests some teams may have an additional year (or “gap”) before a new engine-manufacturer agreement is required.

In IndyCar, “engine brand” refers to which manufacturer supplies the power unit used by a team. The host treats engine-brand choice as a strategic lever that teams and manufacturers negotiate, affecting partnerships and marketing value.

A “depth chart” is a sports metaphor for an organization’s ranked pecking order—here, which teams are most likely to be supported or prioritized by a manufacturer. The host uses it to discuss how manufacturer slots might shift if teams change engine partners.

In IndyCar, a manufacturer charter is an agreement that ties a team’s entry to a specific manufacturer’s support and branding. It’s part of how the series structures manufacturer involvement and funding, so losing or gaining a charter can change which teams a manufacturer prioritizes.

Chassis iterations are successive versions of a race car’s chassis design—updated to improve performance, reliability, or compliance with evolving rules. In series where teams don’t get many chances to change hardware, experience across iterations becomes especially valuable.

Driver-in-the-loop (DIL) simulators are racing simulators where a real driver is physically in the loop—steering/braking inputs are used to evaluate how the car behaves. They’re used to develop and validate setups and vehicle behavior before (or alongside) track testing.

A seven-post shaker rig is a motion platform used to simulate road and suspension movement by vibrating the car’s chassis. It helps engineers study ride, handling, and suspension/tyre behavior under controlled conditions without driving on track.

“Engine dinos” is shorthand for engine dynamometers—test stands that measure engine output and behavior under controlled loads. Teams use them to validate power, mapping, and thermal performance before track use.

“Gearbox dinos” is shorthand for gearbox dynamometer testing—test setups that evaluate transmission behavior under controlled torque and load. This helps teams check shift quality, durability, and how the gearbox responds across operating conditions.

CFD (computational fluid dynamics) uses computer simulations to model how air (and sometimes other fluids) flows around a vehicle. In motorsports it’s used to predict aerodynamic forces like drag and downforce before or alongside physical testing.

A wind tunnel is a controlled facility where air is forced past a car or aero component to measure drag, downforce, and airflow behavior. “Capabilities” here means the organization can run aerodynamic tests to refine shapes and setups for racing.

R&D staff means the engineers and technical personnel dedicated to research and development. In racing, larger and more specialized R&D groups can translate into faster iteration of designs and better integration of test data.

DW28 is the next IndyCar chassis/engine package name the host is referencing as a shorthand for what Chevrolet’s future development will be. The discussion is about whether Chevrolet’s new, centralized development resources will translate into on-track advantage.

In IndyCar, the gearbox is the transmission hardware that turns the engine’s power into usable drive at the wheels. When the host says the “new gearbox” is the most influential change, they’re pointing to a major mechanical redesign that can affect weight, efficiency, and how the car delivers power.

A gearbox casing is the housing that protects and supports the gearbox internals. Using magnesium for the casing is a weight-saving strategy because magnesium is lighter than many traditional metals, helping reduce overall car mass.

“Hybrid weight” refers to the mass added by the hybrid system components (like energy storage and related hardware) in a hybrid race car. In racing, every extra kilogram can affect acceleration, braking, and tire wear, so teams try to offset it with weight savings elsewhere.

An energy recovery system captures energy that would otherwise be lost during driving (commonly during braking) and stores it for later use. In IndyCar’s hybrid context, the host is waiting to see how the new system changes both performance and weight.

An energy storage system is the part of a hybrid setup that holds recovered energy so it can be released when needed. The host is specifically questioning whether the “larger” storage capacity comes with extra weight, which would offset other weight savings.

Eric Harcrater is referenced as a listener or participant asking about updates (“any news on Prima?”). In this segment, he functions as a questioner rather than a technical authority.

In IndyCar, a “charter” is a team’s guaranteed entry slot for races, tied to the series’ entry system. Buying or selling charters affects which teams can reliably compete and how new teams can enter the grid.

A “fitment kit” is the package of parts and hardware needed to adapt a car to a specific engine/manufacturer setup. In this discussion, the cars are “kitted” for Chevrolet, but a different fitment kit is required when switching between Chevy and Honda.

“Ancillaries” are the supporting components that go along with the main engine or power unit—things like accessory systems and related hardware. The host is noting that switching between Chevy and Honda requires more than just the engine; the supporting parts differ too.

“Super speedway spec” refers to the specific configuration IndyCar teams run at large oval tracks. It includes the car’s setup and bodywork tailored for high-speed oval racing conditions.

“Super speedway bodywork” is the oval-specific aerodynamic and body configuration used for IndyCar’s largest high-speed tracks. It’s contrasted here with short-oval needs that require different aero hardware.

“Road course wings” are aerodynamic wing packages designed for road courses, where downforce and cornering balance matter more than pure top speed. The host points out they’re expensive, which affects whether a team can afford to run certain track types.

Indianapolis Motor Speedway (IMS) is a major oval circuit in Indianapolis, Indiana, best known for hosting the Indy 500. In IndyCar scheduling discussions, IMS often represents a key oval venue with distinct setup requirements.

A manufacturer car is a race car run with direct involvement from an automaker—typically with factory support, branded engineering, and sometimes dedicated funding or technical resources. In this context, the host is discussing how Chevy’s factory relationship could influence how teams pay for and structure their season spending.

In racing, an operating budget is the money a team expects to spend to run the season—staff, travel, logistics, engineering support, and day-to-day race operations. When the host says Chevy wants its manufacturer car to be a “significant contributor” to the operating budget, they mean the manufacturer-backed effort would materially affect (or be funded through) that spending plan.

A factory relationship is an arrangement where a team partners with an automaker for support—often including technical direction, parts, engineering collaboration, and sometimes funding. Here, the host suggests that having that relationship could help a team “level up” and attract sponsorship by leveraging the manufacturer connection.

A shared event is a race weekend where multiple series participate at the same venue—so teams and drivers from different series are present in the same place. The host uses “Phoenix” as an example of an IndyCar/NASCAR crossover weekend where coordination is more plausible than at standalone events.

“Over/under” is a betting line that sets a number you’re predicting will be above or below. In this question, the host is treating IndyCar roster changes as a wager: how many current drivers won’t be on the grid next season.

“Current points” refers to the standings points accumulated so far in the season. Hosts use it to gauge which drivers are performing well and who might be at risk of losing rides.