FIA World Rally ChampionshipSeptember heralds our annual trip Down Under as Rally Australia hosts round 10 of the 2014 WRC season. Sebastien Ogier seeks a second successive victory in New South Wales, whereas VW team-mate Jari-Matti Latvala must better his fourth position from 12 months ago. Meanwhile, Mikko Hirvonen hopes to rediscover the form that guided M-Sport’s 33-year-old to three consecutive wins in the ever-popular Coffs Harbour-based event.Round 10, Australia: Friday 12 September at 13:00, Saturday 13 September at 13:00 and Sunday 14 September at 12:15LIVE World Endurance Championship and Blancpain Endurance SeriesOur feast of live September sportscar coverage kicks off in Texas with the 6 Hours of COTA. After dominating at Silverstone and Spa-Francorchamps, Toyota’s quest for a maiden Le Mans victory was denied by Audi, although their TS040 Hybrid should excel on Austin’s long straights. Elsewhere, the Blancpain Endurance Series concludes with HTP Motorsport targeting a second successive Nürburgring 1000km win with their Mercedes-Benz SLS AMG GT3.WEC, Round 4, Circuit of the Americas: Saturday 20 September at 22:30Blancpain Endurance Series, Round 5, Nürburgring 1000km: Sunday 21 September at 10:30 and 14:30LIVE United SportsCar Championship and European Le Mans SeriesThe GT and Prototype action continues on both sides of the Atlantic as we remain at America’s grand prix venue for live USCC coverage. Corvette’s GTLM pairing of Jan Magnussen and Antonio Garcia seek yet another victory, while Action Express Racing aim to resume winning ways. Meanwhile, ELMS’ two-month break ends at Le Castellet with TDS Racing and Jota Sport hoping to capitalise on early-season promise.USCC, Round 11, Austin: Saturday 20 September at 16:00ELMS, Round 4, Paul Ricard: Sunday 14 September at 12:45LIVE NASCAR Nationwide SeriesIt’s a typically packed line-up of four races in three weeks for the second tier of America’s premier stock-car organisation in September, which continues it’s back-to-back run. Returning to venues previously visited in 2014, our Illinois and Dover coverage is live, while there’s delayed-as-live action from Richmond and Kentucky. Championship frontrunner Chase Elliott aims to build on top-five results in Virginia and Delaware, while Regan Smith will be hoping to banish his disastrous Sparta showing in June with another triumph.Round 25, Richmond: Saturday 6 September at 11:30Round 26, Chicagoland: Saturday 13 September at 20:30Round 27, Kentucky: Sunday 21 September at 07:00Round 28, Dover: Saturday 27 September at 20:30V8 SupercarsAustralia’s premier touring car series returns to Victoria for 2014’s first Endurance Cup meeting at Sandown Raceway, Melbourne. Triple Eight duo Jamie Whincup and Craig Lowndes will aim to repeat their triumph of 12 months ago after dominating with co-drivers Paul Dumbrell and Warren Luff respectively. Meanwhile, Ford Performance Racing’s Mark Winterbottom looks for another win after tasting victory in 2006.Round 10, Sandown: Sunday 14 September at 08:15LIVE EuroFormula Open and International GT OpenOur traditional single-seater and sportscar double-header resumes in September with live and delayed coverage from Spa-Francorchamps and Monza. Title-chasing Thai Sandy Stuvik claimed victories at both venues last year, while Scuderia Villorba’s GT Open championship challenger Andrea Montermini aims for another home triumph in his Ferrari F458 GT3.EuroFormula Open, Round 6, Spa-Francorchamps: Saturday 6 September at 13:50 and Sunday 7 September at 10:50EuroFormula Open, Round 7, Monza: Saturday 27 September at 13:50 and Sunday 28 September at 16:00International GT Open, Round 6, Spa-Francorchamps: Saturday 6 September at 14:50 and Sunday 7 September at 11:50International GT Open, Round 7, Monza: Saturday 27 September at 14:50 and Sunday 28 September at 16:50LIVE FIM Motocross and Endurance World ChampionshipThe two-wheeled mayhem continues with live FIM Motocross coverage from 2014’s final rounds in Brazil and Mexico, before Latvia hosts the Motocross of Nations. Reigning MXGP champion Tony Cairoli claimed overall victory when the series last visited South America in March, while MX2’s Jeffrey Herlings dominated when Mexico last appeared on the calendar. Elsewhere, one of motorcycle racing’s endurance jewels – the 24 Hours of Le Mans – takes place on the iconic venue’s Bugatti layout as Kawasaki chase a fifth consecutive win.FIM Motocross World Championship, Round 16, Brazil: Sunday 7 September at 17:00 and 20:00FIM Motocross World Championship, Round 17, Mexico: Sunday 14 September at 20:00 and 23:00FIM Motocross World Championship, MX of Nations, Latvia: Sunday 28 September at 11:00, 12:30 and 14:00FIM Endurance World Championship, Round 4, 24 Hours of Le Mans: Saturday 20 September at 13:30 & 18:00 and Sunday 21 September at 09:00 and 12:30.All times are BST