Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Mercedes-Benz S-Class W222

Mercedes-Benz has unveiled its new S-Class W222 sedan flagship. At 5,246mm long, 1,899mm wide and 1,491mm high, sitting on a wheelbase of 3,165mm it is the latest model designed to convey ‘The Essence of Luxury', features the familiar Mercedes-Benz front with a larger, upright radiator grille. To the sides of the grille are two large, full LED headlights that mirror the outer contour of the grille, while the side view is dominated by the familiar dropping line, in the form of a sharp crease running from the trailing edge of the headlamps to a lower point above the rear wheel arches.

CAR interviews Le Mans-winner Allan McNish

The 2010 Le Mans Series reaches its climactic finale at Silverstone on September 10-12 when the gruelling 1000km of Silverstone race takes place. And CAR has some fabulous money-cannot-buy tickets to give away – including full VIP hospitality and pit walks – that will get you into the new Silverstone circuit and up close with the cars and the drivers. Click here to see the competition prizes Not only is the race set to be a nail-biting end to a thrilling season, but it will also act as the curtain-raiser for the new Intercontinental Le Mans Cup that will see the teams visit Road Atlanta in America for the Petit Le Mans, and a six-hour race at Zhuhai in China. The Silverstone round is going to be an epic race, which is why we caught up with Le Mans winner Allan McNish for the lowdown on tackling the new layout at Silverstone and the thrill of driving the formidable Audi R15 TDI Plus. CAR: What it’s really like pedalling the Audi R15?

Concept Car of the Week: Matra Laser (1971)

Founded in 1937, French company Matra began its activities by manufacturing military equipment such as aeronautics and weaponry. In the mid ‘60s, under Jean-Luc Lagardere's ambitious direction, the company bought Automobiles Rene Bonnet to expand its portfolio with street and racing cars. The first model solely developed by Matra was the bonkers, but brilliant, 1967 M530, which took its name from the company's surface-to-air missile the R530.