Much of what we feature here at The Lego Car Blog is the work of AFOLs (Adult Fans Of Lego). This usually means an impeccably photographed, spotlessly clean and brilliant creation, which will forever be placed within a glass cabinet away from light, air, and fingers.

But that’s not what Lego is about. Lego is designed for kids, it’s tough, and it likes to get dirty. Above all else, Lego is for playing with.

Thankfully some AFOLs do retain the childish desire to drive a Lego creation through a big pile of mud, something we whole heartedly approve of here in TLCB office. Truck Trial is their chosen means, and it involves building a remote control replica truck to drive as fast and far as possible through an obstacle course before crashing or breaking something. And that sounds awesome to us!

This trial truck was discovered on the Lego picture-sharing site Brickshelf. It’s a Tatra 6×6 by Atrx, powered by two Power Functions XL motors and controlled via a Mindstorms NXT brain. And it’s delightfully dirty!

You can see all the photos via the link, including chassis engineering shots and more of the Tatra in action at the muddy LUGpol Truck Trial event shown in our featured image above.