The whole new generation of its entry-level A Class will be revealed in full by Mercedes at the upcoming Geneva Motor Show. To get tongues wagging way ahead of time they have released this teaser video in which many of the car's details can be seen such as the overall profile, headlight shape and elements of the bumper. The A-Class will go on sale in Europe by the end of the year and will make its way stateside in the second half of 2013 as a four-door coupe.

The US variant is expected to resemble a compact CLS, and will be followed by an AMG model. Look out for it at the New York Auto Show in April where it will make its debut.

In Europe the A Class will be FWD as standard with sporty variants such as the AMG coming with AWD, and will mirror the drivetrain spec of the new B Class. US Versions should feature a turbocharged 1.8-liter engine mated to a seven-speed dual-clutch transmission. Camouflaged prototypes dressed in QR codes will soon be starting to appear in major cities in Germany as part of a new competition being run in Europe. Smartphone users who spot these cars should scan the code in order to go into a draw for the chance to win a range of prizes, including visiting the car in Geneva where it will make its world debut.