Two luxury convertibles with sporty ambitions: The Porsche Boxster and the BMW Z4 in a comparison test.present it! The Peugeot 407 Coupé Power DieselThe new 240 hp 407 coupé sees Peugeot presenting the most powerful production model in its history. The four-seater is fitted with a V6 bi-turbo engine, which boasts a three-liter displacement and is also the first ever Peugeot engine to feature a braking energy capture system. The makers claim a fuel consumption of just 7.2 liters of diesel over 100 km. But the 407 Coupé is not all brawn; it’s also a very elegant looking car. Prices in Germany start at 43,100 euros.compare it! Porsche Boxster vs. BMW Z4Roadsters combine the convertible feeling with superior comfort. drive it! put the Porsche Boxster and BMW's Z4 through their paces. Both feature a retractable steel roof and are certainly impressive to the eye - but are they actually as fantastic as they look? We examined how they coped with stowing away a golf bag. On the powerplant front, the Boxster had a 2.9-liter mid-engine with 255 hp, while the Z4 we tested was driven by a 3-liter unit delivering 258 hp. Their prices in Germany start at 46,500 euros and 42,900 euros respectively.collect it! A Racing Car CollectorFormula One has millions of fans across the globe. Not many of them, however, are as passionate as Jo Vonlanthen. He is a collector of cars that actually appeared in races. It's probably no coincidence that he himself used to be a racing driver between 1968 and 1976. His extensive pool includes a Ferrari 500, Ayrton Senna's 1989 Lotus and the Renault in which Spain's Fernando Alonso secured the Formula One world championship in 2005. Jo Vonlanthen has been visiting teams at circuits for over 30 years as he seeks to add to his unique collection.vintage: Fiat 500 N CabrioStefanie Tücking once more takes us on a trip down memory lane, and once again meets extraordinary people with extraordinary stories. This time it was the turn of an old open-top Fiat 5...