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Classic Porsche models take on Laguna Seca at the Rennsport Reunion IV

Classic Porsche 550s will take on 550As, 356 GTs and RSKs at the fourth Rennsport Reunion on Oct. 14-16 at Mazda Raceway Laguna Seca in Monterey, Calif.--and that's just one class of Porsches. The reunion of Porsches and their famous drivers moves to the West Coast this year after two previous meetings at Daytona International Speedway and one at Lime Rock Park in Connecticut.

Citroen at the Paris motor show 2008

By James Foxall Motor Shows 02 October 2008 11:59 Citroen is one of the show stealers this year with a stunning-looking concept car that you can actually drive, courtesy of a tie-up with PlayStation. But the firm’s stand had something for everyone, with 34 models including the new C3 Picasso, BMW X6-like Hypnos concept and even a hybrid World Rally Championship car.  This was the first car the firm unveiled in Paris and the one it spent most time talking about. It’s a Renault Modus-rivalling baby people carrier which goes on sale early in 2009.

Concept Car of the Week: Mazda RX500 (1970)

Developed by the Toyo Kogyo Company's advanced design and engineering team, the Mazda RX-500 was described as a ‘mobile test bed for high-speed safety'. Looking at its design, the team's childlike enthusiasm has shone through, resulting in a very cool concept.  From the rakish front to the wraparound windscreen and on to the bread van rear, everything communicates high-tech and ‘70's futurism while also channeling a little of the Star Wars X-Wing. Thanks to plastic body panels, the concept weighs only 850kg and is powered by a 491cc rotary engine delivering 247bhp fitted behind the cabin, in front of the rear axle.