Running 400m doesn't sound like much of a challenge, does it? But what if you were to run those 400m at an altitude close to 200m and as a pure uphill sprint? That's a race guaranteed to put the participants’ calves, quads and endurance to the ultimate test.

Now in its seventh year, Red Bull 400 is also set to conquer a ski jump in Sochi, putting racers to one of the toughest tests they will ever face.