Thought I might rub this in. Don't forget about the MKIII! They are serious business too. My brother who is a mad Toyota fan ownes a few Toy's and that the MKIII is one of them. He has a very well self tuned Supra pushing close to 500whp and he can hang with Vipers pretty well.
The funny thing is, he is a BMW speciallist. And Speaking of BMW's, you guys can't mess with the M power. A friend of mine has a Dinnan E36 M3 pushing over 450WHP and he is able to walk Vipers. And don't forget that this car not only go fast well in a straight line.
I read this earlier on one of the post about varable valve timming, BMW was acutally one of the first companies to develop and use this technology. I think it existed in the mid 80's in BMW cars.