Soapbox racing - the most fun you can have with four wheels and no engine - hits the London and Recklinghausen simultaneously this weekend.
The joy of these events is very much in the creativity of the competitors, the colourful and occasionally hilarious vehicles and the friendly, carnival atmosphere.
So what happens when one of the world's elite Formula One racing teams decides to get involved? Check out the video below to watch Red Bull Racing's team principal Christian Horner call BMXer Shanaze Reade into his office to give her a 'special mission'.
Viewers in the UK can watch the event live on Dave (Sky 111, Virgin 128, Freeview 12) from 16.00 BST (17.00 CET) on Sunday July 14th or check back on redbull.com after both events for a round-up of all the best action.
With events in Oman and France already successfully behind us, it is also the turn of Recklinghausen in Germany to play host to the fast-paced fun of a Red Bull Soapbox Race. To get yourself in the mood for that, why not have a look back at this video of the ten best crashes so far this year.