The Mercedes A-Class is an executive car range which was first launched in 1997. This compact hatchback model is currently in its fourth generation and is the brands smallest car. It is at the top of its class for premium substance and is also the brands biggest seller, with the C-Class not far behind. The vehicles design is sleek and sharp with an attractive shape that appeals to drivers. The range is available with a selection of petrol and diesel engines that change with each generation. The third generation offers a 1.5 litre, 1.8 litre and 2.2 litre diesel engine with varied power outputs. These diesel motors hold impressive refinement and are both frugal and strong. In all, the Mercedes A-Class is a top of the class, premium range that offers leading efficiency and attractive looks.