After Solo jumps out of the window and joins Illya in the Land Rover, palm trees can be seen ahead as well as an American street sign (yellow caution diamond shaped). Palm trees don't grow in Sicily.
During the opening sequence, when Solo and Illya's car crashes in to the truck, the cracks in the windshield are obviously had drawn and superimposed.
After asking a local for directions, Solo gets back in the jeep. As they drive away you can clearly see a member of the crew crouched down behind the vehicle.