Testing a Lego car against longer and longer gaps that it needs to drive over. Gradually improving the car until it becomes a capable gap crossing/bridging vehicle. Things you need to consider: wheel diameter, wheel count, 8WD, wheel position, center of mass, frame length, frame strength, moving mass, weight reduction. Enjoy! Base rules for all builds: -max length 1 meter -no steering (to simplify the builds) -only Lego parts used Remote control: SBrick https://sbrick.com/product/sbrick/ BrickController 2 app (Android) https://play.google.com/store/apps/details?id=com.scn.BrickController2 PlayStation 4 wireless controller