bmw m3 2008 sedan

[COBRAXR8]

Hi everyone, whats your opinion on the the new m3 sedan? Being some 15 grand cheaper than the coupe.that might be because it wont have the carbon roof,im very impressed with it but unsure of resale. should i wait 12 months and buy a used one? or just buy new? i broke my neck 2 years ago and need support as you could understand,and the m3 seats now even adjust your butt left n right cheek lol. it alot of cash but i would like some help on choosing, thoughts about this car.the other thing is i dont like merc's. thanks for your time cheers