What gameplay will be implemented? What type of races can you ride? In the following video guys from GameSpot are talking and explaining all of the possible fun that you could enjoy.
Interesting are also "raids" which are not common or even existing in this type of games. They haven't played it yet but it could be a chain quest for 4 drivers and could last even 3 hours.
And factions seems also prety good. It reminds them Planetside 2 where 5 different factions will "fight"over the territory and you can gain ranks, rewards, special car parts or new cars for your accomplishment.
Doesn't it sound good??? Check it out!