Thank you all, very helpful replies. I don't know! I think I just want something new.
I am quite sick of the P cars I have been through. There are only 30 370Z in Taiwan. If I get it. It's very rare and unique. My biggest concern is the back seats and the trunk space. My 997 is already not very handy in many ways. I have no clue why I went to Nissan dealer to check out the Z. I guess it attracts me.
I also went to test drive an Audi A4 2.0TQ with dual clutch. I know it's a sedan. It also drives pretty good to me. The reason I am all over the place is because of the price range is very similar. I know Z might be not as comfort than the 997 but the price and the looks attracts me. Audi, oh well. Quiet, nice interior, nice options, plenty of space and it's a sedan.