No - they were showing off four aspects of the same game.
The game's not bad - I personally had very high hopes for it that haven't been quite met. The racing is fairly intense, but if you're a veteran of the TOCA series there's nothing to really frighten you. There's a couple of technical issues - when things get busy on screen there can be frightening frame rate drops, the game looks like a really good PSOne game, and the steering with the Logitech wheel is inconsistent, with some odd little bugs (like the wheel not realigning back to centre when racing, so you're running down the straight with the wheel pointed 15 degrees to the right).
The story mode does induce a few solid cringes, too.
Seems like I'm painting a bleak picture, but the pack racing does help - there's no too many games you'll play where if you make an error a pack of five cars suddenly pounce on you (most of which hit you).