bmw 540i v nissan 350z v mustang gt deluxe

Please provide feedback if you have any thoughts or advice. Short and simple, these three cars im debating:

2004 Dodge Neon SRT-4 - $10,500
Miles: 58,621
No problems

2003 Ford Mustang GT Deluxe - $8,995
Miles:69,922
No problems

2004 Nissan 350Z - $7495
Miles:68,335
Ad says small water damage, haven't called to see exactly what was damaged but if its bad this wont be considered.

2001 BMW 540i - $9000
Miles: 38,778
Right rear damage, dont know how much it would cost to fix yet. The guy selling it said the price includes a new door.

http://i1143.photobucket.com/albums/n624/blckninja2213/p_b3deca1d5d046abaed443b6472161edf.jpg
http://i1143.photobucket.com/albums/n624/blckninja2213/p_ab5a93803aadf359ab53359709bda014.jpg