Which of these vehicles off-tracks the most?

When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called off-tracking or “cheating.” Longer vehicles will off-track more. The rear wheels of the powered unit (truck or tractor) will off-track some, and the rear wheels of the trailer will off-track even more. If there is more than one trailer, the rear wheels of the last trailer will off-track the most. [Commercial Driver Handbook]