A 700hp Corvette might get it's weight down to 3000lbs. That's 4.3lbs/hp. A 180hp sport bike (say the 1198R Duck or GSX-R) will weigh 360-380lbs. Yup, that's 2.0-2.1lbs/hp. The GT bikes like the Hayabusa weigh more, but are just as fast as top speed is a function of hp and drag, not weight. Weight says how fast you get to that top speed.
There is just no way any stock four wheeler can come close to any litre sport bike, or any 1300cc GT bike. Sure, bring your heavily modded cars, and the bikes will still murder them. You have to ride one to experience just how amazing it is to feel belt-buckle-to-your-spine acceleration at over 200km/h.
To be fair though, perhaps if the car guys are bringing modded machines, then shouldn't the bike guys too? I don't know about the Ducati or BMW big guns, but the 1300cc engine in the Hayabusa can see 220whp without much effort. The effort that someone puts into making an 800hp car would build the most extreme motorcycle imaginable, which right now is a 500hp bike. Stripped of body work, etc., the big Suzuki can be pared to about 475lbs. Yup, less than one pound per hp. Even with the horrible aerodynamics of the "naked" bike (and bikes in general with respect to high speeds) the turbo-to-the-:censor: 1300 (punched to 1600) bike supposedly can go 400km/h. Now, I wouldn't try that, but I bet people do. The stock 2000 Hayabusa could break 320, so...
