I'll take the G35 due to the fact that the engines are the same. I think the body for the G35 looks a little better and I like that it has a back seat. The back bench might not be that big, but often times, I need the space. Both cars are outstanding vehichles, but it all depends on what you have a need for. If I had a wife/girlfriend with no need for a back seat, then I'll take the 350Z convertible with a twin turbocharged engine and some 19" rims cruisin' down the US 101 at 100 mph. Then with my luck...I'd get rolled and have my car impounded...