The Unimog 421 is similar to the U900/406, but slightly smaller.
Because of it's compact size, the 421 was often used in agricultural situations, this same feature would make the 421 an ideal trail vehicle.
|| This photo shows a soft top with cargo drop side cargo bed.
Like all models of Unimogs, the 421 was available as either a hard top or a soft top. The identifying factor between a 421 and a 406 is the air intake snorkel.. on the 421 it is on the passenger side.