The live racing roster is overflowing this weekend with second-round FIA World Endurance Championship coverage from Spa-Francorchamps kicking off the crammed schedule of action.Audi proved that past performance is no guarantee of future success at Silverstone, with both R18s failing to finish. That enabled Toyota to romp to their first LMP1 one-two, with returnees Porsche completing the podium. Meanwhile, G-Drive Racing took LMP2 honours with an assured victory in the Morgan.Bolstering the endurance racing line-up is live United SportsCar Championship coverage from Laguna Seca as America’s premier prototype and GT series concludes its Californian adventure in Monterey’s mountains.Chip Ganassi Racing’s Scott Pruett and Memo Rojas continued their Action Express counter-attack in Long Beach by taking a second consecutive win, while Corvette broke Porsche’s GTLM stranglehold with victory for Jan Magnussen and Antonio Garcia.Completing our American action is live NASCAR Nationwide Series coverage from Talladega Superspeedway, the first of four races in a packed month of motorsport Stateside.Points leader Chase Elliott extended his lead over Regan Smith after finishing second behind Sprint Cup regular Kevin Harvick in Richmond last weekend, although on recent form third-placed Elliott Sadler poses the greatest threat to Elliott’s title aspirations.The action will be similarly frenetic in our mix of live and delayed sixth round FIM Motocross World Championship coverage from Valkenswaard in the Netherlands.Although he leads the MXGP standings, title holder Tony Cairoli will expect another fierce battle with chief rivals Gautier Paulin and Clement Desalle while Jeffrey Herlings will look to regain the MX2 championship lead with a fifth consecutive clean sweep on home turf.The High Speed Television Channel’s single-seater offering begins next with live and delayed second-round coverage of the FIA Formula 3 European Championship as the continent’s premier F3 series visits Hockenheim.Briton Tom Blomqvist’s Silverstone race one victory couldn’t prevent Prema Powerteam duo Esteban Ocon and Antonio Fuoco charging ahead in the Drivers’ and Teams’ standings respectively, with Frenchman Ocon completing a trio of rostrum finishes.The rechristened EuroFormula Open continues our German single-seater odyssey, as the championship kicks off at the Nurburgring. Last year’s runners-up Team West-Tec will finally hope to end RP Motorsport’s title winning streak throughout the eight-round season.And wrapping up our coverage from Germany’s alternating grand prix venue is the International GT Open with live and delayed action from the Spanish-based GT series. Former F1 driver and Super GT champion Andrea Montermini returns to defend his title.Saturday 3 May11:00 LIVE FIA F3 European Championship, Rd 2, Hockenheim (Race 1)13:00 LIVE FIA World Endurance Championship, Rd 2, Spa-Francorchamps20:00 LIVE NASCAR Nationwide Series, Rd 9, TalladegaSunday 4 May09:00 EuroFormula Open, Rd 1, Nurburgring – Delayed-as-Live (Race 1)09:50 International GT Open, Rd 1, Nurburgring – Delayed-as-Live (Race 1)10:50 LIVE EuroFormula Open, Rd 1, Nurburgring (Race 2)11:50 LIVE International GT Open, Rd 1, Nurburgring (Race 2)13:10 FIM Motocross World Championship, Rd 6, Valkenswaard – Delayed-as-Live15:00 LIVE FIM Motocross World Championship, Rd 6, Valkenswaard18:00 LIVE United SportsCar Championship, Rd 4, Laguna Seca (Race 1)21:15 FIA F3 European Championship, Rd 2, Hockenheim – Delayed-as-Live (Races 2&3)22:30 LIVE United SportsCar Championship, Rd 4, Laguna Seca (Race 2)All times are BST