Stock engines are so boring.
Cornering isn't the only thing Miatas are good for.
We salute you, mysterious engine swap maestro.
Yeah, we're as confused as you are.
370 horsepower going to the rear wheels on dirt seems like a recipe for fun.
Sorry purists, this one is way out there.
Looking to stand out at your next autocross? Boy do we have the car for you.
Even for a drag car, that's absurdly fast.
Dynos weren't built to measure electric cars, as this video so nicely demonstrates.
We're not sure how it managed to fit, but we're glad it exists.
With some huge fender flares and a gigantic turbo, this Supra-engined M5 might be the most interesting BMW build we've ever seen.
That's one sure fire way to make a ton of power, 900 to be exact.
This classic Mustang lost its V8 in favor of a turbocharged 2JZ. Unconventional, but brilliant.
Who needs turbos when you've got a screaming V10?
Hey, at least they're keeping it in the family.
And it actually makes more power than the stock V8.
It was $100,000 to build the first of these 424 wheel horsepower screamers, but should be $30,000 less the next time around.
It fits. Kind of.
This V8 DMC-12 is the car John DeLorean should have built in 1981.
An Australian shop didn't get enough power out of the 86's stock flat-four. They then proceeded to go insane.
Keith Tanner gives us the scoop on how Flyin' Miata fit a 6.3-liter GM LS3 under a 2016 MX-5 Miata's hood.
And it weighs almost exactly the same as a stock 2016 Miata.
Dodge has decided not to build a 707-horsepower Ram pickup, but that didn't stop this dealership from Hellcatting one together.
It's like an LS-swap, but infinitely more complicated!
The dreamiest BMW engine-swap Frankenstein ever lives just across the pond in England.
Sacrilege. Glorious sacrilege.