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How Bring a Trailer revolutionised the market, with Randy Nonnenberg and James Turner #306

How Bring a Trailer revolutionised the market, with Randy Nonnenberg and James Turner #306

The Intercooler Mar 23, 2026 46 min
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About this episode

Randy Nonnenberg and James Turner trace Bring a Trailer’s path from a 2007 car-search blog into a curated online auction platform that’s now run by 175 employees and has hosted tens of thousands of sales. They explain the key inflection points: featuring cars to build demand, “BAT exclusives,” and the shift to auctions in 2014 with a focus on truth, oversight, and permanent records. James also shares Sports Purpose’s racing/consignment world and how it’s partnering with BAT to expand credibility in the UK.

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Technical Too Afraid to Ask
Company

Bring A Trailer

"Randy being founder of Bring A Trailer, the enormous online car auction platform. And we want to hear all about the history of it."

Bring A Trailer is a website where car enthusiasts bid on cars online. It’s known for having lots of detailed listings and a big community behind it.

Concept

online car auction

"Randy being founder of Bring A Trailer, the enormous online car auction platform. And we want to hear all about the history of it."

An online car auction is like bidding on a car through a website. People place bids, and the highest bid wins when the auction ends.

Car

Porsche 911

"big news as well that you'll share in a moment. James Turner, founder of Sports Purpose. If you've been to Bist Emotion and you've seen a beautiful old 9-11 in a showroom or driving through the site, it's probably because of Sports Purpose. And we'll explain why, what"

The Porsche 911 is a famous sports car made by Porsche. It’s known for having the engine in the back and for being a model that has been made for many decades. People talk about older 911s because they can be rare and collectible.

Company

Reddit

"The intercooler now has a Reddit page. It's the intercooler. The idea is that it's a place where people can gather to discuss everything that we do, whether that's our magazine or this podcast or maybe the videos or events or whatever."

Reddit is a website/app where people join topic-based communities. They’re saying the podcast has a place there so listeners can talk and share ideas.

Concept

classifieds

"...I was always looking, I didn't have any money, but I was looking at speedsters for sale and the local classifies. And it turns out once we put that in one place on Bring a Trailer..."

Classifieds are ads where someone lists a car for sale and you reach out to them. In the early days, the listings were often vague and hard to judge from the photos alone.

Concept

online auction

"But thankfully, the way Bring A Trailer has evolved and, and online auction has evolved and even classifieds, I would say, have gotten better..."

Online auctions let buyers bid remotely on vehicles listed on the internet, often with photos, descriptions, and time-limited bidding windows. The segment contrasts early, fragmented listings with how modern platforms improved visibility and listing quality.

Concept

eBay

"eBay was big and something called Craigslist was a free marketplace. And these were the places where stuff was buried."

eBay is a big website where people buy and sell cars online. The point is that before Bring a Trailer, cars were often buried there instead of being curated for enthusiasts.

Concept

Craigslist

"eBay was big and something called Craigslist was a free marketplace. And these were the places where stuff was buried."

Craigslist is a website where people post ads for cars. The speaker’s point is that listings could get lost, and Bring a Trailer helped bring them to the right buyers.

Concept

online classified listing

"we'd feature a car once it got some critical mass and that seller would have their car posted in a classified listing online for a week and it was quiet. Nothing would happen. And then it would get listed on and all of a sudden he'd get 20 calls and 20 offers"

A classified listing is just an online ad for a car. The point here is that once a car got featured, lots more people noticed it and started contacting the seller.

Concept

auction ideally would be the most efficient way to set price

"So we knew that auction ideally would be the most efficient way to set price and make it fair for everybody."

They’re saying auctions can figure out a fair price faster because several buyers are competing. Instead of guessing what it’s worth, the bids show what people are willing to pay.

Company

Pebble Beach tent auctions

"...we took eBay's on the left. And the big, you know, pebble beach tent auctions are on the right."

Pebble Beach is a famous car event, and its auctions are known for rare, high-value collector cars. The hosts mention it to compare traditional auction culture with their online model.

Car

BMW E30 M3

"The other was an E 30 m three, that kind of went crazy."

The BMW E30 M3 is an older BMW M3 that car fans love. They’re saying this particular car “went crazy,” meaning it drew a lot of bids.

Term

credit card payments

"we had never had credit card payments, we had never had anything. And we really in 2013, we really made it much more sophisticated."

“Credit card payments” refers to enabling card-based transactions, which can dramatically increase participation by lowering payment friction. The speakers emphasize that they previously had no credit-card capability, making early growth harder.

Concept

red flag

"we won't let somebody say, you know, this car has no rust, because that's like immediate red flag like problem, right?"

A “red flag” is something that makes you pause and question what you’re hearing. In this case, claiming “no rust” on an old steel car can be suspicious, so BaT flags it for review.

Company

AutoTrader

"Why would I do that rather than list it on [1179.8s] in the UK? We have AutoTrader. Yeah, absolutely."

AutoTrader is a website where people list cars for sale. The conversation is contrasting it with auction-style selling.

Concept

permanent online

"...it's permanent online what you do, right? Like that's very different than auction where it a Jag goes across in two minutes and then it's out the door..."

“Permanent online” refers to the lasting, searchable record of what was posted and when—photos, descriptions, and claims. The speaker argues this permanence discourages manipulation because the evidence can’t easily disappear after the sale.

Concept

price discovery

"[1381.1s] all these games being played. The positive of auction is for price discovery, an auction [1385.9s] starting at $0 with no reserve is the most with honest bidding is the most pure way to find what"

Price discovery means figuring out the real market price by watching what people bid. Instead of guessing, the price comes from what buyers compete over.

Brand

Aston Martin racing

"And so I served my time in Formula One, worked for Aston Martin racing,"

Aston Martin Racing is Aston Martin’s racing team/program. Working there usually means you’re involved with high-level performance and competition.

Company

Peter Auto

"And we created the two-liter cup with Peter Auto. So we're now in our ninth season of a One Make series for early 911s."

Peter Auto is the company behind organizing these kinds of racing events. They’re involved in running the series they’re talking about.

Concept

two-liter cup

"And we created the two-liter cup with Peter Auto. So we're now in our ninth season of a One Make series for early 911s."

The “two-liter cup” is a race class based on engine size. It helps keep cars more evenly matched so drivers can compete fairly.

Term

sub three minute lap

"There was a moment of great excitement at the Spa a couple of years ago because we wondered whether someone would do a sub three minute lap"

A “sub three minute lap” means the car completes a full lap in less than three minutes. It’s a sign of very fast driving for that track.

Term

on-board shot

"There is some footage, isn't there? I think it is one of your cars going up through O'Rouche. And it's an on-board shot looking through the screen."

An on-board shot is video filmed from inside the race car. It lets you see what the driver is doing while they’re driving.

Part

multi-point cage

"I had a multi-point cage and some other good bits on it. But yeah, it actually lays rubber as it goes into the left hander."

A roll cage is a metal frame inside the car that helps protect you in a crash. “Multi-point” means it’s attached in more places for extra strength.

Concept

lays rubber

"But yeah, it actually lays rubber as it goes into the left hander. It's so sideways."

It means the tires are spinning or scrubbing hard enough to leave marks or smoke. It’s a sign the car is being driven very aggressively.

Concept

Le Mans Classic

"Yeah, I raced one. Not one of those at the Le Mans Classic. In, god, 2010, I think."

Le Mans Classic is a big event where older race cars go back on track. It’s one of the best places to see historic cars being driven hard.

Company

Gordon Murray cars

"We've done some business with Gordon Murray cars as well, which has been pretty satisfying and interesting to work with them because I believe in those cars very much."

This refers to a modern car company tied to Gordon Murray, the same person behind major Formula 1 design work. They make special, lightweight performance cars.

Concept

ABS and aircon and Bluetooth

"everybody now wants a 997 because it's got ABS and aircon and Bluetooth and all the things."

They’re saying people want classic cars, but they also want modern features like safer braking, air conditioning, and phone connectivity. That’s why certain newer classics sell better.

Concept

VAT

"So yeah, it all works in in pound sterling now and all the VATs and different [2195.1s] sort of stipulations that are required are all there built in."

VAT is a tax added to purchases in the UK and many other countries. They’re saying their checkout and fees are set up so UK sellers and buyers don’t have to figure it out themselves.

Term

0% APR for 60 months

"Deal's so right, it almost feels wrong. The Hyundai getaway sales event gets 0% APR for 60 months plus zero payments for 90 days..."

APR is the interest rate on a car loan. “0% APR for 60 months” means you pay no interest for five years, which can make the deal much cheaper.

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