Split/Second isn't like most racing games -- this much you already know. Like most racers, it has the super-fast cars, tight turns and limited slip differentials, but you can't take down whole buildings mid-race in most games in the genre. In fact, you can't blow up huge boats, either. Basically, it's like Burnout, except the world around you is the thing that gets smashed into bits.
All of that (and more) happens in the very brief glimpse of gameplay above. Enjoy!