Oh ok then, but if the R68 is a 75 ft car, the R46 should have about the same weight, I'm not sure, but the R46 can climb hills at 32-35mph, it's kind of upsetting because it makes me late, but nevermind. Also the run sounds are loud, but that's not a big problem I can change it for me, I'm saying just in case so you can fix these little sound problems in the next update.