If you thought the A90 Toyota Supra had already reached its tuning ceiling, think again, because one insane build has completely rewritten the rulebook. Carwow recently lined up a fully-built, four-wheel-drive Supra against a heavily modified Nissan GT-R, and while both monsters were making around 1,000 horsepower, the result wasn't nearly as predictable as everyone expected.On paper, this looked like one of the wildest JDM drag races ever filmed. In one lane sat a 1,070-horsepower Toyota Supra that had been transformed into the world's first all-wheel-drive A90, while the other lane featured a brutally quick 1,000-horsepower Nissan GT-R that has spent years earning its reputation as the king of tuned street cars. With both machines valued at over $175,000 and packing enough boost to embarrass most supercars, this showdown had all the ingredients for absolute chaos. The World's First AWD A90 Supra Is Completely Unhinged CarWow / YouTubeThe Supra might still wear Toyota badges, but almost everything underneath has been turned up to eleven. Its familiar 3.0-liter turbocharged inline-six has been completely rebuilt with strengthened internals, while an upgraded turbo system, reinforced transmission, stronger driveshafts, fuel system upgrades, and countless supporting modifications help it crank out a staggering 1,070 horsepower and 885 lb-ft of torque.The biggest talking point, though, is what happens underneath the car. Instead of sending all that power to the rear wheels like every other A90 Supra, this build has been converted to all-wheel drive, making it the first example of its kind anywhere in the world. That extra traction gives it an enormous advantage off the line, although the owner admits launching the car is anything but easy. It relies on a trans-brake setup instead of conventional launch control, and even experienced drivers admitted the Supra felt borderline terrifying as it squirmed its way down the runway at full boost.CarWow / YouTubeThe GT-R, meanwhile, proved exactly why enthusiasts still call it Godzilla. Its fully built twin-turbo V6 pumps out an even 1,000 horsepower and around 804 lb-ft of torque, sending every bit of that power through Nissan's legendary all-wheel-drive system. Although it gives away around 70 horsepower to the Supra and weighs roughly 330 pounds more, its launch consistency and brutal mid-range acceleration made it a serious threat throughout the day. Mechanical Gremlins Couldn't Stop The Supra The drag race wasn't exactly smooth sailing for either car. The Supra repeatedly threw drivetrain warning lights, occasionally shifted into the wrong gear, and even suffered moments where it dropped boost halfway through a run, leaving everyone wondering whether it would survive the day. The GT-R had its own struggles as well, with launch timing proving critical in a race where fractions of a second meant everything.Even with those setbacks, the Supra continued showing just how ridiculously fast it was. Several races were incredibly close, with the GT-R clawing back victories whenever the Supra ran into mechanical hiccups, but once everything finally worked as intended, the Toyota unleashed its full potential. Thanks to its lighter weight, additional power, and all-wheel-drive conversion, it stormed down the quarter-mile in just 9.6 seconds, while the GT-R crossed the line in a still-blistering 10.0 seconds.Watching two four-digit-horsepower Japanese sports car icons battle it out is always entertaining, but what made this race even crazier was how raw both cars felt. Neither machine behaved like a polished factory supercar, with warning lights flashing, boost surging, and both drivers wrestling the steering wheel as the cars hunted for grip at triple-digit speeds. It was messy, unpredictable, and exactly the kind of drag race that reminds you why heavily modified street cars are so addictive to watch. HOTCARS TAKE CarWow / YouTubeThis race shows just how far the modern Supra platform has come. The GT-R has spent nearly two decades dominating the high-horsepower tuning scene, but builders are now proving that Toyota's BMW-based coupe has the potential to become the next giant killer. An all-wheel-drive conversion combined with more than 1,000 horsepower might sound completely over the top, but after watching this Supra outrun one of the quickest tuned GT-Rs around, it's hard not to think we're entering a whole new era of Japanese performance builds.