Here's a quick look at four generations of Mercedes A-Class as the company launches its latest model.

Mercedes has revealed its all-new fourth-generation A-Class hatchback, the entry point to a vast range of vehicles with the three-pointed star embedded on the front. It's been an emotional 20 years since the original car was first introduced – what better moment than the launch of a new car to take a quick look back at the history of the car. 

Click on the next button above to see a brief history of the Mercedes A-Class

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