Are the difficulty levels the same in multiplayer races?
Essentially, yes. In multiplayer races, the host can choose the length of the practice session, while this is fixed in single-player races. In single-player races, however, an option called “Accelerated Time” allows fast-forwarding to the end of a session. All of the length and difficulty factors apply equally to single-player and multiplayer races, and multiplayer races can include up to 20 players and/or AI cars. I’ve seen as many as 18 cars in one race on Papyrus’ LAN, but please note that bandwidth constraints limit Internet-based multiplayer races to only a few cars. Note: For more information about racing over the Internet, see my GPL Online FAQ.