Unimog at work
IS IT a truck or a train? That is a relevant question about a Unimog, the go-anywhere Mercedes truck that is capable of doubling as a locomotive. A Unimog truck is at work in a rail tunnel on the San Bernardio Pass in the Swiss Alps, shunting a 40m construction train weighing 60 tonnes. The train carries a concrete mixer, compressors and a full load of construction gear.