Faced with a cronic shortage of proper material for the landings, German Ingenuity kicked in and improvisations as the ones seen on this photo started showing up: Barges equipped with a 'mixed' propulsion system, airplane and ship motors.  Ostende harbour, second half of 1940.

Improvisations

German transport column on the Agheila-Agedabia road, south of Benghazi, under cannon attack from Bristol Blenheim Mark IV, Z5867, of No. 113 Squadron RAF. The first two lorries are running off the road. Victor Sierra

German column under attack

SS sniper at a bank on the east front (?).