The 2011 Porsche Carrera Cup GB continues at Thruxton (30 April/1 May) for rounds five and six of the 19-race season. With a superb field of 24 of the new 450bhp 911 GT3 Cup cars on the grid at the fastest track on the schedule, it promises to be a fantastic weekend of racing at the challenging Hampshire circuit.Four races, three winners and nine points covering the top three drivers point to a pretty good start to 2011 for the Carrera Cup GB, with James Sutton, Michael Meadows and Euan Hankey are setting the early pace. Thruxton is already the fastest track on the schedule and the new cars could break the 1m14s barrier and take the average lap speed past 115mph.Current championship leader Sutton (SAS/Redline) says that the new car will be sensational around Thruxton. “It will be an extraordinary place to race the new car,” said Sutton. “The added aero will really work around the fast corners and the new car is purpose-built for circuits like Thruxton.”Sutton, champion in 2007, is back with a very strong package and has been the most consistent driver across the first four races with three seconds and a third. Now he wants the top step of the podium as he builds a very strong title bid. Running alongside Sutton in the SAS squad is Meadows and a first victory at Donington will have been a timely boost for Michael as he develops his own title bid.Right now, the driver really taking the fight to the SAS-backed cars is Hankey in the Parker with Juta car and he’s won twice. Euan was blisteringly quick at Thruxton a year ago on his Carrera Cup debut and will be another absolute benchmark. But this is not just about the trio at the head of the points, as drivers like Stephen Jelley (Parker with Juta), Team Parker Racing duo Sam Tordoff and Richard Plant and Ben Hetherington (Redline/Oman Air) are all showing great pace. Jelley won at Brands, but had a frustrating weekend at Donington, while Tordoff showed race winning pace in only his second Carrera Cup weekend.For category veterans Tim Harvey and Michael Caine (Nationwide/Motorbase) it has been a troubled start to the season. Harvey has suffered two punctures in four races, while Caine’s campaign took a knock with a hefty testing accident at Donington. If there is any track where their experience will serve them well, it is Thruxton.In the Pro-Am1 category, Lithuanian racer Jonas Gelzinis (Juta Racing) has taken the early advantage and even claimed an overall pole position at Donington. He’s grabbed a points’ margin over Ahmad Al Harthy (Redline/Oman Air) and Rory Butcher (Celtic Speed) and at least goes back to Thruxton this year knowing the track after his debut there a year ago.There is another great contest going on in Pro-Am2 and so close is the category that the top drivers were three-abreast at Donington at one point. George Brewster (Celtic Speed) is the man with three wins from four races to his credit, but Andrew Shelley bagged a first win at Donington as his Redline Racing team mate Keith Webster ran them close. Steve Parish (Motorbase Performance) should be back in the mix this weekend, having missed Donington due to business commitments.After qualifying at 14.35 on Saturday, round five will start at 12.10 on Sunday with round six at 16.25. Both races will be broadcast live on ITV4 during the extensive BTCC programme, which starts at 11.00 on Sunday.