6 speed Supras are slow as hell. A guy with 1,100 WHEEL horsepower has managed a best time of 9.6. Now, it doesn't take a rocket scientist to realize how slow that is for the ammount of power.
Now, there's a guy who has a Supra with a 2 speed GM powerglide transmission. The car has seen 1500 WHEEL hp on the dyno. He ran an 8.4 at 160mph, with the car making 1,100 hp at the wheels. I'm not sure if he's attempted a run at 1,500 hp yet, however, it's easily a car that will make it into the 7's.
True, the car is probably a pain in the ass to drive, but that didn't stop him from putting 5,000 miles on it last year. For those who are going to call BS (not that I blame you, 1,500 hp out of a 180 cubic inch engine is kind of insane to say the least), here's a link to the 8.4 run.
Technology - the replacement for displacement?
Incar view of the same run
Now I don't know about you, but having a street car that's made an 8.4 run in the quarter mile would definitly be an ego booster for me
