Top Gear can exclusively reveal that McLaren's upcoming, entry-level supercar will have at least one door.

We jest, of course, because this news comes off the back of McLaren's latest teaser image for the 'baby' supercar, part of Woking's new 'Sports Series' range. As you can see, there is a rather cool door involved.

And it's no ordinary door, but a vertically opening dihedral door. We suspect there shall be another, too.

What else do we know about the Sports Series? It'll go up against both the new Mercedes-AMG GT S and Porsche 911 Turbo, and is expected to arrive around April 2015.

It'll be based on a spin-off of the carbon fibre tubs used in the McLaren 650S and P1, with aluminium body panels and a variation of the familiar 3.8-litre twin-turbo V8 and seven-speed dual clutch 'box.

We'll find out more as McLaren continues its #BlackSwanMoments teaser campaign for the Sports Series range so stay tuned.