The following text was published on the Apple Store:
Summit the Alps as you top the leaderboards in this brand-new update!
NEW LOCATION: Feel the exhilaration of racing through the snow-capped Alps!
NEW CARS: Experience the raw strength of the Mitsubishi Lancer Evolution X, the unbridled horsepower of the Blade XT4 and the first BMW to appear in Asphalt Xtreme, the X6.
SPECIAL PROJECTS: Take part in challenging new events and beat the boss to get a brand-new car.
NEW DAILY MISSIONS: Overcome the new Daily Missions to unlock exclusive rewards.
CAREER MODE ADDITIONS: Conquer exciting new Seasons and Vehicle Masteries.
Special Projects is a new game mode that lets you drive a car in a series of tests that you don't own yet. At the end of the Special Project, if you successfully complete all races, you win the car.
It is functionally identical to Research & Development in Asphalt 8: Airborne. Several differences in Xtreme are the lack of pre-race quotes, all vehicles only have 3 stages to complete: Research, Development and Manufacture instead of labs, and all 3 tasks for each race have to be completed to advance to the next instead of achieving quality checks.
Instead of keys, fuses are used instead. Fuses need 4 hours for all 3 to be restocked.