Yokomo, Tamiya, and Xray are great car with strong team of driver, I will rate Xray the highest due to the stronger material while other two are catching up lately. I drove Schumacher on super grip asphalt which is so painful to tune. Which is why I stick with it just to train myself hard on the knowledge of car setting. If we ignore the team support and winning, Schumacher beat the other 3 in terms of quality and material, not to mention the noob prove packing.