RE: hellfire rtr vs. muggy
Hellfire is a truggy and so is the muggy, while this is the section of monster trucks.
Between the two the hellfire is better at racing while the muggy at bashing. If you want losi for racing go with the 8T while you want losi go for LST2 as a great basher.
If you want an HPI monster truck go with the savage but Id prefer the lst