Bose Coupe

2004 Infinity G35 coupe - 68,000 miles (Has Brembo brakes and Bose sound upgrade) - can get it for $14,500
2003 BMW Z4 3.0i - 41,000 miles (Has Premium package, premium sound, and convenience package) - can get it for $14,000

Both cars are 6 spd manual.

Now, I am having a real hard time deciding. I like the G more, but I cant help but feel that the Z would be a better value for my money. Another thing, the Z is a 1 owner car owned by an old couple who I know most likely never abused the car. The G on the other had is owned by a young man in his 20's. He says he bought it at 50,000 miles from the first owner who was an "older" lady. I don't know how much of that is true but based on that which car would you guys recommend? The engine in the G is the VQ35 which 'should' be a great engine, but anybody with personal experience with it wanna elaborate on it? Thank you.