Need for Speed Underground 2 is the sequel to the best selling console game of 2003 and builds on the original hugely.
First off, the game is no longer menu driven as racers can now drive around a fictional city picking up races to fulfill a contract or races just to gain money.
The money can then be spent at a variety of places including Graphics shops (Paint / Vinyl / Decals etc), Specialists shops (Nydraulics / Neons), Body Shops (Spoilers / Roof Scoops / Rims etc) and at performance shops (Engine / Suspension / Turbo etc)
Then you are ready to race more and there are plenty of races to compete in, including StreetX (best described as racing on the drift tracks and its no holds barred), Drag Racing, circuit racing, sprint racing and also the previously mentioned drift races. There is also the new URL (underground racing league) races which consist of a number of circuit races.
Other racers can also be raced by driving close to them and pressing up on the D-Pad (much like flashing your light in midnight club 2). These races reward you with small cash but can sometimes help in getting unique parts for your car.
Overall - N4S-UG2 is a huge overhaul from the first Underground and isnt your typical sequal.