BMWs aren't made to go fast. But, they handle really well in corners/turns.
Do you have a manual? If you do, just don't do anything stupid. I've seen some people's cars come in...and their transmissions are all messed up. Some common occurances....include BMW owners trying to switch from 4th gear to 3rd gear to accelerate...and miss and hit 1st gear...and mess up the whole car.
The automatics...have steptronic...that switches gears at high RPMs...5K-6K. The brand new breaks need to be broken in...but after 1K miles things shoud be good. Don't abuse your BMW....otherwise you might be paying for more than you hope.
So whatever you're doing. Just don't do anything stupid.
Enjoy your BMW!