just got a Z did i get a good deal? how do i drive it????

[amrbasha]

hi! this is my first time ever posting in any forum of any kind but its my 2nd time owning a Z! i had a 350 about 4 years ago. (found out the hard way those things arent made for snow) I must say the 370 feels lighter, faster, and more agile. I got it monday for $29,000 its a 2010 base with Sport Package and 13,000 on the OD. traded in an 07 white bmw 328xi with 91,000 I was hoping to get some tips on taking care of it, like how long to let it warm up, and if i should avoid driving it in certain conditions. also is there a good way to find out exacly what kind of condition it is in? like should i take it to the nissan dealer and have them do an inspection or something? any idea on how much that would cost? also i want to get a nice aftermarket exhaust any reccomendations? thanks!