Introduced in the Hot Summer Update, Car Mastery (or just Mastery) is another single player game mode of Asphalt 8: Airborne. It offers 15 single-lap races, called Challenges, for each car of the game, with the possibility to earn Credits, Car Upgrades, Pro Boxes, Boosters, and 
Licences. This mode is only available for players with at least 135 stars in the Career Mode.
Challenges
Challenge selection Screen: Challenge 6 was completed and claimed, Challenge 7 is not claimed, Challenge 8 is ready to be played, Challenge 9 and 10 are still locked.
For each car in the game, there are 15 Races available, in increasing difficulty: the cars of your NPC opponents will be gradually increase from initial rank to max to max+pro. To be able to accept a challenge, i.e. take part in the race, you have to complete the previous challenges. Also your car has to have a certain level, challenges 1 to 5 being available without upgrades, increasing until Challenge 15 which requires a maxed and pro'ed car (low mid end D Class cars and some low end C Class cars like the Ford Focus RS sometimes does not require a fully proed vehicle). While Challenges 1 to 10 have traffic, Challenges 11 to 15 are without traffic (except for the usual stationary vehicles).
Challenges are either of type Classic, Unplugged or Flawless. Classic means you have to finish first, Unplugged means finish first without Nitro refills on the track, and Flawless finish first without crashing: if you crash, you are immediately disqualified, and the race ends without credits earned.
Licences
Licences work as an experience level, similar to the star system, which you cannot buy but only earn. However instead of giving you access to new levels, the licences give you access to new Decal packs, as well as some cars apparently exclusively available through licences: Camaro Z/28 ( 300), Datsun 280Z ( 650) and Shelby Cobra 427 ( 1,050). See the detailed contents of each decal pack on the page Car Mastery Rewards.
Farming
The Mastery mode is interesting for farming in the classical sense once you have pro'ed your Class S or Class A car:
The 15th challenge for the Lamborghini Veneno in Alps pays 
5,845 for less than a minute of driving (versus the Season 9 race which takes at least 1'30 and pays 4,725) or the McLaren P1 15th challenge in Temple Drive which pays 5,915.
But not all pro'ed cars are suitable for farming, for instance for the Mercedes-Benz Silver Lightning in Tokyo gives 5,925, but because Tokyo is a long track and the race type is Unplugged, the credits per second are not very high. Also the opponents are at the same car upgrade level, you risk to not finish first if you crash.
However in a less strict sense of the term, you can earn a lot of credits while playing, independent of you car level: among all races of all cars, the total of Race Rewards are estimated to 4,500,000, the medals reward around 400,000, and the Challenge Rewards close to 12,000,000, not counting the value of the Pro Boxes, Boosters or car upgrades. However these credits can only be obtained if the necessary cars are owned.
Challenge Rewards
For each race you play in the Mastery mode, you get a number of rewards. Similar to events, you can cash in those rewards after the race, or you can decide to leave them for later.
For each Challenge you get a Credits reward, and for Challenge 5, 6 (mostly), 10 and 15 you get an additional reward. With the release of the AC 378 GT Z there are 2,464 Licences in total, 83 Tuning Kits and 100 Nitro Starters available, so these rewards are very common. The rather rare rewards are Free Upgrades, Extra Tanks, Pro Kit Boxes, Tokens and Double Credits, which can be obtained in the following challenges:
Trivia
- The graphic language of the Car Mastery is new to Asphalt 8. While the car overview resembles closely to Season 9, the Challenge selection screen, the Challenge loading screen and the Challenge completion / fail screen have graphic elements and colors which are new to Asphalt 8. See the gallery below for examples.
- There is a glitch in the pre-race cut-scene which is visible sometimes, it shows the name of the car in a distorted layer. It seems this was supposed to look like the end screen but hasn't been finished in time for the release.
