05 G35 comes with 300hp, not too shabby if you not gonna race it or put it to the limit. Comes with smart key, mp3 player .... however, interior finish is rather less than luxury.
02 M5 comes with 333hp, quite blasing fast for most ppl, but have a high chance of being pushed to the limit by previous owner. Way better interior finish than G35, but have less gimmics...
Styling is quite "different" for G35, some ppl like it and think it's unique, but some thinks it's kinda out there and ugly. As for the M3, I don't think I have to say much.
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