The core aim of the game is to grow and develop your reputation as a street racer, earning new parts and upgrades along the way to hot up your ride and hopefully impress some chicks. "We're making sure this is a proper sequel and not just a kind of 'Underground 1.5'," says Chuck. NFSU2's go-anywhere urban sprawl is three times the size of the original, with five distinct neighbourhoods to unlock and a much wider variety of race types. This is a significant shift from the original Underground, which presented the illusion of a coherent city but was really just a series of interconnecting tracks. "You have to explore the city to find out where the races are, how to get the best cars, how to find the best races and how to get all the best parts for your car." "The game is all about discovering the tuner culture," says executive producer Chuck Osieja.