Research & Development Update

The Summer's Over Update is the v2.1.0/v2.1.3 update of Asphalt 8: Airborne, which was released on September 30th for iOS and Android, October 14th for Windows and October 20th for Nexus Player which is exactly same platform as Android, Lollipop.

Announcement
The following text was published on the Apple Store:


 * Summer's over, but the latest Asphalt 8 update will help you keep the heat going a little longer!


 * LAMBORGHINI HURACÁN R&D: Test-drive the Lamborghini Huracán and complete each stage of upgrades to make this motorized marvel yours!
 * 6 NEW CARS: The Lamborghini Huracán, Bentley EXP10 Speed 6 and four other super sports cars will be progressively released!
 * CAR MASTERY EVENTS & REWARDS: We added more than 100 brand-new Car Mastery events! Take 'em on to earn exclusive Cars & Decals!

New Cars

 * SUBARU IMPREZA WRX STI (Class D)
 * Kepler Motion (Class B) (token Car)
 * McLaren 570S (Class A) - postponed to the Santa's Gift Update
 * Bentley EXP10 Speed 6 (Class A)
 * Lamborghini Huracán (Class S) (R&amp;D / token Car)
 * Cadillac 16 Concept (Class S) (Licence car)

Game Changes

 * Research & Development game mode added. It introduces new cars in a series of test drives, which have to be cleared within a given time span in order to receive the car for free.
 * The Pro Kit Boxes section has seen a major change: the Racer Kit Box has been permanently replaced by the Super Racer Kit Box, which contains now 8 cards (instead of previously 4) and is available every 8 hours (instead of once every 24 hours).
 * The Car Mastery Rewards section was expanded, and five new decal packs were added, as well as one new car reward, the Cadillac 16 Concept.
 * A new collection for all Chevrolet cars was added.
 * The San Diego Harbor, Sector 8, and Tenerife tracks are now available in Quick Solo Race.
 * The McLaren P1™ GTR's drift handling is no longer bugged as well.
 * The Mitsubishi Lancer Evolution X has been considerably buffed from its Hot Summer Update rendition.
 * Glitches surrounding the Ferrari 330 P4 have been fixed.
 * Metal Effects now available on Android.

Trivia

 * Summer's Over Trailer ad.png in-game ad for the trailer of the new update depicts the Lamborghini Aventador LP 700-4 and the Audi R8 LMS Ultra, which were the stars of the Tenerife Update, released in May, with the same artwork.
 * The Mitsubishi Lancer Evolution X was included in the Hot Summer Update but wasn't released until the Summer's Over Update.
 * The glitch in the Car Mastery pre-race cut-scene with the distorted layer has been fixed; it displays now correctly.
 * This update introduces a new Engine legendary Pro Kit Card V16 Engine, which is needed for the Cadillac 16 Concept (and later, the Devel Sixteen Prototype).
 * Some of Car Mastery Rewards were reduced such as:
 * Camaro Z/28 Nitro Starter reduced from 24x to 6x, Tuning Kit from 16x to 4x, Extra Tank from 12x to 3x(!)
 * Datsun 280Z Extra Tank reward is reduced from 12 to 6
 * Renault DeZir class D free upgrade is reduced from 3 to 1
 * Ford F-150 class D free upgrade is reduced from 2 to 1
 * Renault CLIO R.S. 200 EDC class D free upgrade is reduced from 2 to 1
 * Lamborghini Urus class B free upgrade is reduced to 2x Nitro Starter (!)
 * SRT 2013 Dodge Challenger SRT8 class C free upgrade is reduced from 2 to 1
 * Ferrari Testarossa class B free upgrade is reduced from 3 to 1
 * Aston Martin DB9 Coupé class B free upgrade is reduced from 2 to 1
 * Aston Martin V12 Zagato class B free upgrade is reduced from 2 to 1
 * Nissan GT-R (R35) class A free upgrade reduced to 2x Nitro Starter (!)
 * Mercedes-Benz Biome class B free upgrade is reduced from 2 to 1
 * Lamborghini Gallardo LP 560-4 2013 Class B free upgrade reduced from 2 to 1, and 2x Class A upgrade reduced to 2x Nitro Starter (!)
 * However, the Spada Codatronca TSS did keep its 2 class B upgrades.
 * Ford Shelby GT500 challenge 10, class B free upgrade is reduced from 2 to 1
 * Chevrolet Corvette C7 class A free upgrade is reduced from 2 to 1
 * Ferrari F12berlinetta class A free upgrade is reduced from 2 to 1
 * RUF RT 12 S challenge 10, class A free upgrade is reduced from 3 to 1
 * Lamborghini Sesto Elemento class S free upgrade reduced to 3x Nitro Starter (!)
 * Many of the Mastery challenges' first position credit reward were reduced. For example, McLaren P1 Mastery Challenge 1 first place has been reduced from 1,975 base credits to 915, and with this all challenges up to Challenge 14 (4,243 instead of 5,420). Challenge 15 has however remained untouched at 5,915.
 * In Mastery, the base credits used to be at a regular increment. This is no longer the case, it is impossible to calculate the base credits of a given challenge from the interval of the first and the second challenge.
 * In Mastery, with an un-tuned car (at starting rank), only the first two levels are available to play, where as before the first five where available.
 * This is the first update to add Class S cars with a Speed Mod of 100% (two, joining the Lamborghini Veneno that was available since release).

Bugs
This update introduced a number of bugs:
 * Unmotivated wreck: Upon landing correctly or slightly touching the border, the car wrecked. There had always been a slight chance for an unmotivated wreck in the previous versions, but it had increased greatly with this update. This has since been fixed in the Santa's Gift Update.
 * Game Center freeze: On the iOS platform, Game Center became very slow with iOS 9.0. Upon connection with Game Center, the game became unresponsive for a random amount of time (1~20 sec). As a side effect, Events are unavailable for several minutes even though the device was connected to WiFi. This was actually a bug of iOS that has been fixed since iOS 9.1.
 * Random skid/bump: The car would start drifting or jumping for no apparent reason. A prominent example was in Tokyo Reverse, where the sidewalk bump was increased to an amount that made the track nigh impossible for certain cars.
 * Resource needs: on older Android smartphones, tablets, or Windows 8.1 devices, the game had serious lagging issues, making it virtually impossible to play. Lowering the graphic effects in the setting menu helped, but didn't fix the problem. Upon playing the same level again, there were no issues anymore.
 * R&D: In certain levels, your opponents would try to hinder you from reaching your goals only to wreck themselves in the process, earning them the nickname "Suicidal AI".
 * Tokens/Licenses become Credits : On the Android version of the game, it was reported that should the connection be weak, cars available only for Tokens or Licenses suddenly became available for Credits with the same number of Credits. Examples include a McLaren P1™ GTR suddenly becoming available for (as a reference, this is the price of an Aston Martin DB9 Coupé), as well as the Shelby Cobra 427 becoming available for.