Other mistake: In France, the road passes the Eiffel Tower and the Arc de Triomphe twice. After the first sighting, the road runs quite in a straight line with slight left-right turns only, so it couldn't hit the same landmark twice during the race. It's not uncommon to see numerous re-used scenery pieces in Cruis'n games (it's an arcade title after all) but replicating such unique assets as well is a bit lazy, even from Midway.
Factual error: The underwater tunnels in the Hawaii stage are placed too high to be at correct level connecting with the Ocean below, let alone going underwater. In fact, the roadway never even gets in level with the Ocean surface, so it's a topographical anomaly.
