Question: Because of Game Center, Mini Motor Racing games can now do what?

Context paragraphs:
Synetic GmbH: Synetic GmbH is a German video game company specialising in racing games.  The company was founded in 1996 in Gütersloh by 5 former members of Ascaron.  All 5 original members are still working for the company.  Although the company with its team of 8 employees is rather small and its games are virtually unknown outside of Germany, their titles are among the most popular racing games in Germany and are consistently among Germany's best-selling games.

List of FIA events: These are the motor racing events administered and regulated by the Fédération Internationale de l'Automobile (FIA), the international governing body of motorsport.  The FIA runs these events, determines the regulations and awards the championships or trophies to the competitors, while working with other promoters and event organisers who arrange the commercial affairs of the event.  Other motor racing series are not directly controlled by the FIA, although the Federation is the ultimate regulator for most international motorsport, and provides the regulations for many other series.  The FIA's top motor racing events, known as World Championships, are positioned as the most prestigious titles within their respective fields, with Formula One considered to be the pinnacle of world motor racing.

Racing helmet: A racing helmet is a form of protective headgear worn by racing car and rally drivers.  Motor racing has long been known to be an exceptionally risky sport: sudden deceleration forces on the head can easily occur if a racing car loses control at the very high speeds of competitive motor racing or the rough terrain experienced in rallying.  A risk more nearly unique to motor racing is the possibility of drastically severe burns from fuel igniting when the fuel lines or fuel tank of the vehicle are jolted sufficiently to dislodge or breach them in a situation in which the driver cannot soon enough escape from his car.  This happened to world champion driver Niki Lauda at the 1976 German Grand Prix race at the Nürburgring in a crash from which he barely escaped alive.

2011 Deutsche Tourenwagen Masters: The 2011 Deutsche Tourenwagen Masters season is a multi-event motor racing series largely based in Germany for highly modified touring car racing cars and is one of the most popular sedan car based motor racing series in the world.  The series features professional motor racing teams and drivers is heavily supported by car manufacturers Audi and Mercedes-Benz.  Each race features 18 V8 powered racing cars built according to the technical regulations of the Deutsche Tourenwagen Masters.  It will be the twelfth season of Deutsche Tourenwagen Masters since the series' resumption in 2000.  The 2011 season will be the first season that cars will not run on Dunlop tyres, instead running on Hankook tyres in the first year of a three-year control-tyre deal.  It was the final season running the 4-door saloon style spec cars, which has been the series' sole car style requirements since 2004.  It was also the final season that all DTM cars running with the manual gearbox shifters before all DTM cars switched to sequential semi-automatic gearbox paddle shifters at the following season.

Mini Motor Racing: Mini Motor Racing is an Isometric Arcade Style Racing Game developed by The Binary Mill for the iOS and Android platforms.  In May 2013, the game was also released for the Microsoft Windows platform, as Mini Motor Racing EVO.  It was released on the iTunes App Store on December 8, 2011, and on the Google Play Network on May 11.  The game features vehicle, race and environment physics, vehicle upgrades, day and night tracks, Career, Quick Race and Multiplayer modes along with Game Center leaderboards and achievements.  "Mini Motor Racing" also uses Apple's iCloud to store and sync progress across iOS 5 devices.

Geoff Crammond: Geoff Crammond is a computer game designer and programmer who specialises in motor racing games.  A former defense industry systems engineer, he claims to have had little interest in motor racing before programming his first racing game (Formula 3) back in 1984, but he holds a physics degree, which may explain the realism of some of his programming.  As a consequence of that project he became a big fan of Formula One motor racing.  At the end of the 80s, this interest, plus the ever improving capabilities of home computers, inspired him to specialise in programming Formula One racing simulations.

Game Center: Game Center is an app released by Apple that allows users play and challenge friends when playing online multiplayer social gaming network games.  Games can now share multiplayer functionality between the Mac and iOS versions of the app.

Kart racing game: Kart racing game, also known as cart racing game, go-kart racing game, or simply kart racer, is a subgenre of racing video games. Kart racing games are known to have simplified driving mechanics while adding obstacles, unusual racetrack designs and various action elements.  Kart racers are also known to cast fictional characters known from various platform games or cartoon television series as the drivers of vehicles with unusual designs.

Racing video game: The racing video game genre is the genre of video games, either in the first-person or third-person perspective, in which the player partakes in a racing competition with any type of land, water, air or space vehicles.  They may be based on anything from real-world racing leagues to entirely fantastical settings.  In general, they can be distributed along a spectrum anywhere between hardcore simulations, and simpler arcade racing games.  Racing games may also fall under the category of sports games.

Briggs Motor Sport: Briggs Motor Sport was an Australian motor racing team which has represented Queensland based businessman John Briggs in motor racing.  The team has competed in Sports Sedans, Australian GT, Formula Holden, and most notably as a touring car team competing in the V8 Supercar Championship Series.  The team last competed in historic motor racing and the Australian GT Championship but was folded at the end of the 2009 season.

Supporting paragraphs: Mini Motor Racing Game Center
Answer: share multiplayer functionality between the Mac and iOS versions of the app