Until the new M5 hits the streets it's all speculation but based on the history of the M5, it probably will have 500 hp and stock for stock will probably beat a cobra. Like some crazy company did to the Mercedes V-12 (I believe the supercharged Mercedes V-12 put out over 600 hp), someone will supercharge or turbo charge that 500 hp V-10. Basically, if you have the money you will be the fastest. I was just commenting on the M-5 hunting. I know of a mustang, not street legal but driven on the street, can do a 9-sec quarter mile. The guy spent like $60,000 to make it do that. So I already know of Ford that will beat the new (stock) M-5.
