http://www.tgeweb.com/object-archive.htm
Here u can find cars & spacestuff

http://www.creative-3d.net/free3D.cfm
3dsfurniture


http://www.klicker.de/models.html
Free models

Thank you Thilda   !!


And I add this one

http://www.honda.co.jp/WebPlamo/

There are very beautiful honda cars and cycles , they are made in props so you have to download and import each part, but if you parent them you'll have a final veichle with all parts movabel   !! And there is a nice scooter too (but it lacks the exhaust and I can't find it   )

and this one too

http://www.geocities.co.jp/SiliconValley/3521/

Maybe you've already these links

    
Thanks a lot, Thilda and Davide.
Some of them are new to me, the others worth a reminder

Thanks Thilda and Davide!                

Thanks for the links guys