When you have an M3, I don't think getting a V8 R8 makes sense. You're paying all that money for looks honestly... V10 R8 is a different story, you're getting a baby Gallardo.
I don't think speed is important. I think it is the sensation that matters. So I wouldn't care how slow an F360 is.. That being said F360 is way too old, and not in a good way. It is not an classic, desirable Ferrari. If I were you, I'd aim for an F430.
PS: There was a joke in Top Gear regarding how unfriendly the F360's handling is... They said it is called F360, because it spins a lot
