I made the huge mistake of going on a test drive this past weekend.....it was a mistake since I need to wait about 6months before I can buy one and now i can't stop thinking about it.
My question is how much can you really tell about the car from an approx 10-15min test drive. I loved everything about the car, but can you really get a good feel for the car in such a short time? Do most people test drive it more than once?

 

I drove 3 different ones over about 10 months. Then I found G35 sites and studied and searched to find out more. Then I bought. This is one of the best sites for G35's around. Use the search if you want to find out something and if you can't find it ask. There are lots of people here who will gladly help out.
Good Luck

 

Look at me. I test drove the G only once almost a year ago, just a few days short. I still haven't gotten my G yet, not until next week. I had to wait longer then you, so don't feel so bad for yourself.

 

Test drive it as many times as you can. The dealership wants to sell you the car so they should have no problem with it. The more you drive it the better off you'll be.