Even the M5 at over 160 is still a risk that little tiny spoiler at the trunk lid will not help much and all the car has is that front spoiler. I'm sure with the proper aurodynamics and DINAN chip this car could come very close to 200 mph but not with the stock garbage it has.
Bob

why are you keeping on presenting such non-sense.

1st. of all, it not that easy to lift the car off the ground unless the speed is well above 160mph. Plus even the non-rear spoiler equipped LS430 is able to reach 155mph without any problem.

Plus the M5's shape is not like that of a wing (i.e. like those of CLK GTR, which took off like rocket). Hence, it's highly probable that M5 could easily top 160. Although not a wise choice, but who it to say that it would not able to achieve that high of speed.

Unlike the CLK GTR which is shaped like a wing, it is easier for it to shoot up.

BTW, you can simluate this with Escudo Pike Peak version in the GT3. Watch it took off.

I dont get my information from the local drag strips. I have friends who actually race in SCCA. So if u can prove you can do 165 and better in a city street then $1000 is waiting for you here in NYC! Dont talk about it BE ABOUT IT!
Bob
P S talk is cheap and $1000 is waiting for you ( If you can prove it )