if you like a high revving v10 engine producing 500hp out of a 5 liter engine then by all means get the M5, if you like a turbo car with potential to generate high hp, get the 996tt.

I haven't had the chance to drive the m5, but from what I understand it guzzles petrol like no other and has a small gas tank, but if you don't mind filling up often, its the car to get.

 

the m5 doesnt do anything for me (doesnt hold a candle to the Carrera GT v10 or lambo v10 and is not a good looking car IMO)...but love the 996tt (fun, fast, looks great, etc)...i dont think driving to an office and back is going to allow you to connect with ANY car really. i like the m's (and bimmers in general) a lot, but theyre boring as hell unless youre beating the hell out of them.