The 2008 Charterhouse Heritage Grand Touring Car Challenge wraps up a great season at Brands Hatch on 25/26 October for the 12th and 13th races of the season.The Heritage GT series of races for period machinery is a popular part of the British motor racing scene, with cars ranging from Mini Coopers to Ford Mustangs and from Jaguar E Types to Chevrolet Camaros and Aston Martin V8s. Big grids and fine racing have typified the 2008 season and the final weekend of the season will be no different with an entry of over 30 cars.The race for overall glory promises a fierce battle in the pair of races on Sunday and two Sunbeam Tigers could be right at the heart of the action as Irish crew Jackie Cochrane and Stephen Colbert go head to head with Chris Beighton and Jon Finnemore. Both cars have won races this season and will make a fabulous spectacle as they charge around the Indy circuit.But it is not just the pair of Tigers that will be chasing race wins. Lining up to take the fight to the Tigers will be the thundering Chevrolet Camaro of father and son team Arthur and Boysie Thurtle, as well as very quick Aston Martins for Chris Scragg and Bob Searles/Tony Jardine, while an intriguing new entry is a 5-litre TVR for Peter Wheeler and Ben Samuelson. More normally seen racing an Aston Martin, former TVR boss Wheeler is set to debut his latest car and it will surely attract a lot of interest.In class C, for the less modified eight-cylinder and fully modified six-cylinder cars, the Porsche 911RS of Andrew Chalmers/Colin Davids is a leading contender along with Andrew Knight (Ford Mustang). Tremendous variety comes from the MGB GTV8 of Will and Michael Goff, the Sunbeam Tiger of Neil Merry and Christian Dick and a gaggle of Aston Martins.At least four classic Aston Martin will contest class E and there could be little to split the cars of Steven Byrne/Peter Snowdon, Ian McCallum/John Bussell, Conor O'Brien/Charlie Kemp and Nicholas King/Tony Worthington.Class B includes the splendid Daimler SP250 of Piers Townsend and Chris Conoley, while in class A the Ford Cortina of Kate Bennington takes on the BMW 2002 of Bob Godbold/Anthony Matthews and the rapid Mini Cooper S of Harvey and Clive Death. However, the welcome return of local ace Gordon Streeter from Penshurst in what is widely regarded to be the fastest Ford Anglia in the world will up the ante considerably.