This is my Blacktron fast Scouttrax. You may have seen a WIP topic about it some months ago. This is the end product. It is inspired by the 6941 which was one of my favorite sets when I was a kid. It is also the first wheeled vehicle I've build since my 'dark age'. I've been working on this for a while now, abandoning the project several times because I couldn't get it to work as I had imagined it. Specifically the steering mechanism. The steering technique that I was trying to recreate was something I had seen on TV. The basic idea is that when a wheeled vehicle goes into a corner, the main cabin will lean into the corner, a bit like a motorcycle. This style of steering has many benefits for high speed vehicles. For one, the g-forces on the driver and passengers are much more pleasant. But it also helps with getting better traction on the road. Normal vehicles that take a corner will experience a fictional sideways force which actually is just inertia. In order for a car to overcome that inertia it has to have enough traction. However a vehicle with the style of steering I used, actually uses that inertia to create additional downforce and traction, thereby increasing the velocity that can be used in a corner. I had a hard time creating something that didn't only function well in theory but also in the real world. At the moment it functions as intended, as you can see in the video. However the level of control and suspension could still be improved which is why I am building a second version at the moment.      You can find additional photos on my Flickr account: https://www.flickr.com/photos/33425520@N07/albums/72157669572889372 I have also put it on LEGO ideas: https://ideas.lego.com/projects/159717