Pig - iron frames, gargantuan
knobbly tires and oversized, dirty engines pushing coffee - can sized pistons.
This culture has also been urged forward with the rapid growth of «mudding,» a pastime devoted to putting four wheel drive vehicles in difficult situations and extracting them with winches,
knobbly tires and the like.
The Crew Chief appears to be a butch off - roader, with large
knobbly tires and aggressive angles on its bodywork.