On the face of it, the BMW 1M Coupe shouldn't have been a significant car. It was based on the dowdy 1 Series, it didn't have a 'proper' M engine and it was pretty chubby as well. Yet the thuggish 1M transcended all initial scepticism and earned cult status before it had even gone off sale.

Here Dan Prosser explains the 1M story, what makes it so great, and why it's worth setting your alarm for 4.30am...

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Video by Harry Rudd