Hi there, Does anyone know where I could get CAD blocks of popular cars? Any help appreciated! Cheers, S

I have always had luck at Cad Block Exchange Network. you can get there by  http://www.cben.net  but remember, the blocks are free but it is nice to upload some in return when you have the chance.

There are hundreds of free 2D and 3D cars blocks here in the "CAD Blocks" section. See:
http://www.cadforum.cz/catalog_en/?cat=60