I found this by accident and hope the guy doesn't mind me getting him hits :D (lot of 1600x1200 wallpaper without watermarked):

http://www.auto-portal.us/en/All-Car-Model-Wallpapers/

Here some (thumb version):


http://www.auto-portal.us/upload/images/en/Car-Models/Opel/Opel-Speedster/Opel-Speedster-Photo-1/thumb/Opel-Speedster-Photo-1-1.jpg (http://www.auto-portal.us/en/Car-Models/Opel/Opel-Speedster/Opel-Speedster-Photo-1/)



http://www.auto-portal.us/upload/images/en/Car-Models/Seat/Seat-Ibiza/Seat-Cupra-Gt-Photo-1/thumb/Seat-Cupra-Gt-Photo-1-1.jpg (http://www.auto-portal.us/en/Car-Models/Seat/Seat-Ibiza/Seat-Cupra-Gt-Photo-1/)



http://www.auto-portal.us/upload/images/en/Car-Models/Volkswagen-Group/Volkswagen-Nardo/Volkswagen-W12-Photo-1/thumb/Volkswagen-W12-Photo-1-1.jpg

(http://www.auto-portal.us/en/Car-Models/Volkswagen-Group/Volkswagen-Nardo/Volkswagen-W12-Photo-1/)



http://www.auto-portal.us/upload/images/en/Car-Models/Volkswagen-Group/Volkswagen-Gx3/Volkswagen-Gx3-Photo-1/thumb/Volkswagen-Gx3-Photo-1-1.jpg

(http://www.auto-portal.us/en/Car-Models/Volkswagen-Group/Volkswagen-Gx3/Volkswagen-Gx3-Photo-1/)



http://www.auto-portal.us/upload/images/en/Car-Models/Audi/Audi-R8-Road-Car/Audi-R8-%28Road-Car%29-Photo-1/thumb/Audi-R8-%28Road-Car%29-Photo-1-1.jpg

(http://www.auto-portal.us/en/Car-Models/Audi/Audi-R8-Road-Car/Audi-R8-%28Road-Car%29-Photo-1/)

Great Find!!!

Would be better if it was categorized.

nice pics..