24 Hours? This Hot Wheels Mazda 787B Drove on a Belt Sander for 13 Days

The internet is a strange place. I can guarantee you that none of our ancestors could have guessed we’d be watching a Hot Wheels car run in place for almost two weeks via livestream, but here we are. It’s the work of Diecast Endurance on YouTube, and after running a tiny Ford GT on a belt sander for 13,459 scale miles, the host began torturing a miniature Mazda 787B. The results are astounding.

So, there was actually one car in between the two little Le Mans winners: A Toyota Soarer that lasted three days on the punishing contraption. But that thing couldn’t hold a candle to the Mazda prototype, which soldiered on for 13 days, zero hours, and 27 minutes. Can you believe it?!

The Hot Wheels traveled 33,689 scale miles during the experiment. For reference, the Earth’s circumference is 24,901 miles, and the real Le Mans-winning 787B covered just 3,059.79 miles in 1991. Even when you strip away the scale qualifier, the actual measured distance it covered is wild at 526 miles.

YouTube livestreams are apparently limited to 12 hours if you want to archive them automatically, and the channel uploaded 31 of them for this car.

The amount of accumulated grit on the Mazda’s metal body is impressive. Although the car started this experiment with a totally white paint job and blue decals, there’s a lot of black spattered on its profile—particularly, the right side. When I tuned in at the 283-hour mark, before the weekend, the whole car was shifting around pretty seriously as the rear-left wheel slid back and forth on its axle. This wear was shown not only in the micromaterials that were shaved off, but also in the temperatures, as the two wheels I mentioned were the hottest at 88 degrees and 89 degrees Fahrenheit. (The ambient temp was 86.6 degrees, while the cockpit was a skosh toastier at 90 degrees flat.)

It’s incredible to see how long this trial lasted. I doubt anyone saw it going for a week, let alone almost two. It was sad when it finally went, but one thing is for sure: The 787B set one heck of a benchmark, and I’ll be curious to see if anything else can beat it.

Godspeed, little guy. Or as they say in Japan, 神のご加護がありますように!

Run #3 The Mazda 787B "Manny" – 13 Days in 5 minutes – Includes Autopsy

Updated 7/13/2026 at 10:40 a.m. ET: This story was originally published on Friday, July 10, when the Mazda was going strong. It now features the run’s final stats, as well as a summary video.

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