I use Apache URL-rewriting rather than redirecting pages in PHP, but what does it change in this case?
You can also do that:
http://imcdb.org/vehicle?id=1234/Chevrolet/Chevelle

(but this style is not made on purpose, it is due to the fact that extensions can be omitted and that it discards all what is after page name)

I'd recommend to only use the style that is the easiest for you, and do not care about the others, as they give the same result.