Scraper videos

[steamer]

Maybe if you built it like the some ADT's are built and use gear drive motors in each wheel if may have enough wheel pull. There are some real high torque systems available now that might provide enough power. Some of these gear drive motors put out 600 in oz of torque but getting it to the ground might be tough. What scale are you planing because it limits the size of the tires. The bigger the scale the more rubber hits the road.
Rob