NFS Carbon Challenge Series: Unlocks two bonus cars and three events inspired by Need for Speed Carbon. Experience the thrill of Need for Speed Most Wanted all over again. Behind the wheel of the BMW M3 GTS, and Razor's famed Mustang Boss 302, you'll scream down open highways with cops hot on your tail while you battle your way through a variety of racing challenges. NFS Most Wanted Challenge Series: Unlocks two bonus cars and three events inspired by Need for Speed Most Wanted. Behind the wheel of the Nissan 370Z, and the famed Nissan Skyline GT-R R32, you'll race through nighttime city streets against the hottest tuner cars while you battle for your street cred. NFS Underground Challenge Series: Unlocks two bonus cars and three events inspired by Need for Speed Underground. It unlocks the Limited Edition content: The Limited Edition gives you access to three elite cars (Lamborghini Aventador, Chevrolet Camaro ZL, Porsche 911 Carrera S) and will extend your game play with five exclusive challenges. you can start a new game with everything unlocked, and more! It unlocks all cars, all Challenge Series events, all profile icons, all backgrounds, all Driver Abilities and all Rewards. This unlocker works like the 'Time Savers Pack'.