Is it a long journey, what if it breaks down on the motor way and the police come to see you??

If its a local pick up then do as the above says with the MOT and insurance (just swap the policy for a day), that would be legal so long as you are heading in the direction of the MOT station it is booked in at.

Was going to do this myself with a car at the weekend but from 100 miles away, insure it and risk it but the morning I was going to do it a bus hit me in Birmingham, luckily i was in the daily driver but made me think what if

Another trick is to have a mate follow you in a car and stay behind you, harder for you to be tugged as they usually notice you when they follow you. Still a risk