Lmao @ teleporting.
I know what you are saying about the risk of something going wrong, maybe you should load the audi full of tools and spares, and tow your westy, and convoy with lee, then you and him can take turns in driving the audi and trailer and his westy?
If his brakes, it can be trailered back and drive yours, or he can just send it back with adac?
Failing that, both drive them, and just get an adac hire car when they break and send them home, lol