I have the old Nitro MT 1/10 truck. It was my first RC. I got it because I wanted to build from a kit and I wanted 4wd. I love this little truck even if it has only 1 speed tranny.
The nitrostar 15fe engine which mine came with seems to have lasted longer than I expected. Has a rotary carb
MT has 4wd. Rc 10 2wd -I don't know much more about the rc10 to compare