Britains Allan McNish got his 2013 FIA World Endurance Championship title aspirations off to a flying start on home soil in the season-opening six hour race at Silverstone today (14 April).Dumfries-born McNish and co-drivers Tom Kristensen (DK) and Loc Duval (F), swept their hybrid-diesel Audi R18 e-tron quattro to a 3.462secs victory to lift the coveted Royal Automobile Club Tourist Trophy ahead of the sister Audithe German manufacturer dominating the race almost from start to finish.The McNish/Kristensen/Duval factory Audi averaged 120.17mph throughout the 721-mile, 197-lap race staged in mainly dry but blustery weather conditions marking the Scotsmans fourth and Audis fifth victory in the annual Silverstone race.McNish commented: It was very important to start off the year with big points and for the second consecutive season, weve made a good start to the WEC by taking maximum points.Theres another seven races but were in the best position heading to Belgium early next month.The McNish/Duval/Kristensen and Benot Trluyer/Marcel Fssler/Andre Lotterer Audi sportscars started third and fifth respectively on the 31-car grid but McNish had powered into the lead after 12mins with Trluyer quickly making it an Audi 1-2.Following an 80-minute stint, McNish pitted with a 16secs lead over the sister Audi but Duval, who had taken over from McNish, was demoted to second place after almost 2hrs. A full course caution to clear away debris following a light rain shower cancelled out the Frenchmans lead allowing Fssler to dart ahead at the re-start.Lotterer led Kristensen by 3secs at mid-distance with McNish re-joining the action with 95mins to run 5secs behind the Trluyer Audi.McNish swept back into the lead 10mins later but a shorter, penultimate pit-stop to take on less diesel with less than an hour to run, gave Trluyer a five second lead over McNish.But a spin, in avoidance of a slower car at the apex of a corner, with 40mins remaining, saw McNish drop from 3secs to 18secs behind before both Audis pitted for a final time leaving Trluyer 26secs ahead.But a determined charge saw McNish, who set a series of fastest race laps, sweep ahead with less than five minutes remaining.Allan added: We knew it was going to be a tough race from start to finish, due to the weather and of course the competition from Toyota and also internally at Audi with our two cars going flat out.But I believe it surpassed all expectations. The race quickly came down to a fight between the two sister Audis.I spun avoiding a GT car when lapping it which flat spotted my tyres which meant I had to take on new ones.It was just maximum attack from then until the endthere was no other option if I wanted to lift the RAC Tourist Trophy.The second round of the eight-race WEC is staged at Spa-Francorchamps on Saturday 4 May which McNish/Duval/Kristensen will start with a seven-point WEC lead.