Not knowing more about your financial situation I would think about putting that $35K down on a house...especially with today's low, low, interest rates.

If you already have a house of your own then the G35 is definately a very nice car. A friend of mine at work just got one and it really is awesome for the price (although the Navi screen is a little cheezy if you ask me). I would say go for it in this case.