Maximum number of cars in events (1 player car plus the AI cars) reduced from 12 to 8. Going up or downhill affects speed of the cars (it didn't in NFS II). With NFS II, the Lotus GT1 was fastest at both Mystic Peaks and Monolith studios, but with NFS II SE, only at Mystic Peaks. Mystic Peaks track was slightly modified: after the dirt section onto the cobblestone uphill section, the hill crest was smoothed out. In NFS II, the AI cars tended to go airborne and crash into the mountainside at the hillcrest + right turn.