The truck performs fairly well, but definitely needs improvements. It goes fast enough on the road, although large bumps can cause it to stop, as the small front wheels are a liability. I would like to have larger wheels, but the only large wheels I have were fashioned from Lego large track sprockets, rubber treads, and small treads. These have worked well so far, but I only have 4 of them, which is a problem for larger vehicles. It also is capable of going off-road, but can easily get stuck. And finally, the most serious problem is an inability to drive in any type of grass. I have made an RC pickup truck that was larger than this, and it was very cool indeed with a 4-speed manual transmission, a transfer case to shift between RWD and 4WD, and rear suspension. However, the problem with the complex drivetrain is that it lost a lot of power, resulting in poor off-road capability even in first gear and 4WD. I've made a few other RC cars, but those were all ones designed for speed, not off-road capability, and they worked well until the motors got hot and lost power. I made a few tanks, too, and they were up to the task and very fun to drive, but in the end I took them apart. I tried to make a halftrack, but that didn't end well either. I did make a wheeled front loader, which did very well, but I wanted it to be bigger and more capable, hence this thing. My next construct might be a large bucket wheel excavator, which will certainly be a blast to build, but driving it...it might be slow.