Apparently all your tweaks cannot make up for your LACK OF MANNERS. Rather than posting a honest question of how the M5 and Supra stack up- you post an insulting message in ALL CAPS- the net equivilant to shouting. I will tell you that once you reach a certain level of performance ITS THE DRIVER NOT THE CAR, and as I can see by your post, while you might have a fast car for the straightaways, you likely dont have half the brain power to understand how to handle that kind of speed in a turn and also how to handle proper braking. I suggest you be cautious because it seems to me you have more car than you can handle. Remember this- those who have power do not have to advertise it. Those advertising it dont really have power- they just have a big mouth!