Well, not exactly..
lowpoly car:
http://arjen.zanderz.org/sting/sting-13.jpg
highpoly car:
http://arjen.zanderz.org/dino/dino-26.jpg
Yes, the highpoly one is with "meshsmooth" on, but the basemodel is totally different. When "meshsmoothing" the lowpoly car, it's nowhere near as beautyful as the highpoly one.