A:Answer Absolutely, that's what they were intended for in the first place. The collectors won't take them out of the packages, because they want to eventually get rich selling them. But some cars, like the treasure hunts and maybe some of the rarer paint jobs are most likely the only ones that are really worth much. Go ahead and take them out of the package and have some fun. Try to find the heavier ones, not that a lot of the newer ones are all that heavy, more plastic than metal these days. When I was young they were all metal, very heavy and rolled nice and smooth. Now they are kind of "tinky" as in too light and a bit noisy, but can still be a lot of fun.
