We see American V8s swapped into Japanese cars all the time, but it's rare to see a swap in the opposite direction. This Mustang is one such example, sporting a 2JZ straight-six from a fourth-generation Toyota Supra. And it's fantastic to drive, according to Zack Klapman.
Some purists may find this car pretty offensive, but we think that's what makes it great. Who takes the V8 out of a muscle car and swaps in a turbo straight-six? You almost never see it done. And the end result isn't some janky half-working mess, either—thanks to an independent rear suspension and plenty of other mods, it's a fully competent track car that's tons of fun behind the wheel. The owner, Stephen, even managed to get it street-legal in California, something that's pretty difficult to do with engine-swapped cars.
This seems like the ultimate build for someone who wants something different. We're jealous.
Update 1/18/2019: The Smoking Tire YouTube channel uploaded a second video, shown below, detailing how the owner of this Mustang got the 2JZ to fit into the engine bay and work with the electronics and strict California emissions standards. If you're into build breakdowns, you should definitely check it out.