A former air base and three cars that set the asphalt steaming: Drive it! compares three cars at the top of their class: The Mercedes E 63 AMG with 525horsepower, the BMW M5 with 507 and the Audi RS6 with a dizzying 580 horses...examine it!: Volvo DRIVe-ModelsJust like VW with its BlueMotion variants, since 2008 Volvo has also been offering its owen line of especially eco-friendly models. The stingy machines are called DRIVe. The targets are ambitious: Volvo aims to produce zero-emissions cars.But before the plug-in hybrid arrives in 2012, the path to less consumption leads through more efficient engines. Volvo has presented seven new, especially economical diesel models. Among them, the C30 diesel has the lowest emissions. It’s supposed to use only 3.8 liters per 100 km and emit 99 grams of CO2. compare it!: Mercedes E 63 AMG - BMW M5 - Audi RS6A former air base and three cars that set the asphalt steaming: Drive it! compares three cars at the top of their class: The Mercedes E 63 AMG with 525horsepower, the BMW M5 with 507 and the Audi RS6 with a dizzying 580 horses.They help it reach 100 kph in 4.4 seconds. But it's also the heaviest in the field. Can it still prevail in the acceleration sweepstakes? Prices for both the E 63 AMG and the RS 6 lie beyond the €122,000 mark. At €94,700, the M5 is practically a bargain by comparison.present it!: Chevrolet SparkWith its new Spark subcompact, Chevrolet is aiming squarely at the European market. The car's distinctive design shows clearly that it's not content with small and cute. It wants to be noticed.The spark offers a choice of 1.0 and 1.2 liter engines with 68 and 82 horsepower respectively. It's supposed to use just 5.1 liters per 100 km. Prices in Germany start at €8,900 for the basic version. The Spark will also be available next year in a natural gas version. test it!: Skoda Superb Station WagonThe new Skoda Superb wagon is big, long and roomy. With 1865 liters maximum cargo space, the new Skoda trumps its co...