Xbox One "secret sauce" revealed. 40x more powerful than 360 when connected to the cloud.

[Alby_da_Wolf]

Real Racing 3 uses the cloud for savegames, and generally the net connection for "Time Shifted Multiplayer" and to add new cars. When the connection is down, you race with bots, obviously, but you also lose access to new cars added after the game's release, even if you already bought them.