There was a racing game called Streets of SimCity, which was mediocre (an euphemism, actually it was just bad) as a racing game, but had the amazing feature tha

There was a racing game called Streets of SimCity, which was mediocre (an euphemism, actually it was just bad) as a racing game, but had the amazing feature that you could drive around your SimCity 2000 cities in glorious 3D. Sadly I don't know of an equivalent for SimCity 3000.