AUDI has taken the back off its new R8 V10 plus supercar for a new video which allows viewers to see its high-performance 550PS engine in action - and hear it roar all the way to the red line.

The film, which captures sound of the R8 accelerating at full throttle, is available on YouTube and has already been viewed more than 200,000 times since it first went live.

Thanks to augmented-reality technology - used for the first time by Audi - users of the free image-recognition app Blippar are able to view this video by simply pointing their phone at print and poster advertisements of the car, instantly bringing 2D photographs to life.

The R8 V10 plus costs from £124,675 and can hit 62mph in 3.5 seconds and on to a potential top speed of 197mph with S tronic transmission.

Audi's Kristian Dean said: "The new Audi R8 V10 plus pushes boundaries in terms of performance and innovation.

"The use of Blippar technology allows people to interact immediately with the car, and get under its bonnet in a way they simply would not be able to do with a 2D advertisement alone."