Trade in or not??

I've been struggling with whether or not I should trade in my '03 350Z 6MT(Touring) for a TL 6MT? Part of the reason I have thought about the trade in is the need for more storage, also I had a "run in " with some ice and banged up my left front and rear wheels (both have been replaced). The 350Z is not a winter car for sure. The TL has a lot of bhp which helps also a lot more room, but it's not a sports car. I would appreciate serious comments.
Thanks