Was chatting with the team at Silverstone at the weekend, and I was able to observe one of Freds driver changes.
He may not be the fastest of drivers, but he is dedicated. A great way of getting him in/out - a scaffold pole with strops looped so he can be lifted in/out under the armpits. He steers via a modified prosthetic right arm, it has (what looks like) a gas pipe connector grafted on, and he literally plugs into a steering rod. Amazing