Mastery (Asphalt 8)

Introduced in the Hot Summer Update, Car Mastery (or just Mastery) is another single player game mode. 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. ''The announcing pop-up hints that this mode is only available for players with at least 135 stars in the Career Mode.

Challenges
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, the first 5 challenges being available without upgrades, increasing until Challenge 15 which requires a pro'ed car.

Challenges are either of type Classic, Unplugged or Flawless. Classic means you have to finish first, Unplugged means there are no Nitro refills on the track, and Flawless means no crash: if you crash, you are immediately disqualified, and the race ends.

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, ans well as some cars apparently exclusively available through licences:  Camaro Z/28  (300),   Datsun 280Z  (650) and  Shelby Cobra 427  (1050). See the detailed contents of each decal pack on the page Car Mastery Rewards.

Farming
The Mastery mode is not interesting for farming in the classical sense unless you have pro'ed your Class S or Class A car. For instance: challenge 15 for the Mercedes-Benz Silver Lightning in Tokyo gives. But because Tokyo is a long track, the race type in this race is Unplugged, and the opponents are at the same car upgrade level as you, the credits per second are pretty low.

However in a less strict sense of the term, you can earn a lot of while playing: the total of Race Rewards are estimated to, the medals reward around , and the Challenge Rewards , not counting the value of the Pro Boxes, Boosters or car upgrades.

Race 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 amongst the following:
 * Tuning Kit
 * Nitro Starter
 * Licences
 * Free Upgrades
 * Upgrade for Class D
 * Tesla Model S 2*#10
 * Ford F-150 2*#5
 * Renault CLIO R.S. 200 EDC 2*#5
 * Renault Dezir 3*#5
 * Scion FR-S #5
 * 2015 Ford Mustang 2*#5
 * Upgrade for Class C
 * Audi R8 e-tron #10
 * Cadillac ATS #10
 * Mini Cooper S Roadster #10
 * Ferrari 308 GTS 2*#5
 * Audi RS3 Sportback #10
 * Mercedes-Benz SLS AMG Electric Drive #10
 * Audi TTS Coupe #10
 * Camaro GS #10
 * Infiniti FX50 #5
 * Audi RS 4 Avant #5
 * Alfa Romeo 8C Competizione #5
 * SRT 2013 Dodge Challenger 2*#5
 * Upgrade for Class B
 * Renault CLIO R.S. 200 EDC #10
 * Lamborghini Urus #10
 * Lotus Exige S Coupe #10
 * Volkswagen Golf Design Vision GTI #5
 * DS Survolt #10
 * Aston Martin DB9 Coupé #10
 * Lamborghini Countach #10
 * Lotus Evora Enduro GT #5
 * Ferrari Testarossa 3*#5
 * Aston Martin V12 Zagato 2*#10
 * Ferrari 458 Italia #10
 * Mercedes Biome 2*#5
 * Lamborghini Gallardo 2*#5
 * Ford Shelby #5 2*#10)
 * Upgrade for  Class A
 * Cadillac CTS-V Coupe Race Car #10
 * Nissan GT-R (R35) #10
 * Lamborghini Gallardo  2*#10
 * RUF RT 12S 3*#10
 * McLaren P1 #5
 * Upgrade for  Class S
 * Lamborghini Sesto Elemento #10
 * McLaren P1 #10
 * Lamborghini Veneno #10
 * Ferrari FXX #10
 * Koenigsegg Agera R #10
 * W Motors Lykan HyperSport #5
 * Extra Tank
 * Ford F-150 #10
 * Audi S4 #10
 * Nissan 370Z #5,#10
 * Maserati GranTurismo #10
 * Ferrari 599XX #10
 * Ferrari F430 #10
 * Bugatti #10
 * Double Credits
 * Ferrari F40  #5
 * Ferrari F50 #5
 * Tokens
 * SSC Tuatara  #5
 * Hennessey Venom #10
 * Pro Box
 * Acura NSX 2005 #5
 * Ferrari F430 #5
 * Ferrari LaFerrari #10
 * Nissan GT-R NISMO  #5
 * Mercedes Silver Lightning #10
 * Ferrari F430 #5
 * Ferrari LaFerrari #10
 * Nissan GT-R NISMO  #5
 * Mercedes Silver Lightning #10