I've been missing my Z like crazy. I traded in for a new Q60s last year. It is a very nice car, but it just doesn't have the character/personality a Z has. I always tell people that I love my Infiniti but it is almost boring to drive with all of the luxury.
It is plenty quick but it just doesn't have the raw sports car attitude that we all love. The redesigned Q60 should be coming out this summer...so hopefully I like that otherwise I will probably buy another Z