They stretch 25 meters from tip to tail, and will soon be rolling down the autobahn. The government is letting trucking companies operate longer trucks known in Germany as "gigaliners" in a limited test phase. Voigt Logistik is one company with a license to operate the trucks. The big trucks are controversial. Michael Fagts, a truck driver, says many people do not like the "monster trucks". Critics say the bigger trucks are more dangerous. Trucking companies, on the other hand, expect to save on fuel costs because the trucks can carry more cargo.