alright here it is:
speed: 10-12mph
parts: you can get alloy parts,motors,bodies,wheels,tires,and much more.
price:it depends on what kinda mini you want. there is OL, F1,and Racers. prices range from $100-200 it all depends on where you order it from.
difference: the mini-z is smaller i think and the mini x is bigger and has bigger electronics
hope this helps!
