The obvious cars will always be collectible and classic (i.e. mustangs, vettes, and now the new camaros). I think specifically the 03-04 mustang cobras that were nicknamed the "terminators" will be highly collectable, I think the ZO6 and ZR1 vettes will be collectable, the ZR1 Camaro, will be collectable. Also I think we might start to see more foreign cars being collectable as well however they need to come out with some special editions which I do not see a whole lot of yet so I could not even take a stab at one now besides the GTR and maybe MAYBE the sti's and evos, as someone mentioned maybe even the s2000 but I would be willing to bet the more popular s2000s will be the "cr" versions and the first few years when they had the 2.0 that put out 240hp, I believe at the time it was the highest hp/liter NA engine in the world.