RE: Which one?
here they are in order:
mammoth (fastest RTR 52 MPH) 1/8 scale
associated GT (most durable 35-39 MPH) 1/8 scale
savage 25 (durable 38-41 MPH) 1/8 scale
t max(good truck 40-+...MPH) 1/10 scale
tnx......(good truck 40 +....MPH) 1/10 scale