In regard to the amount of work you have to do when steering one of these things,
I found a great video featuring Alonso and the 2016 Mc'Honda wheel.
Sorry if it's been posted before, but I found it very interesting to see the amount of times these guys need to not only steer the car, but adjust so many other things, under high stress and even high g forces at times.
I know they try to adjust stuff on the straights while they are "having a rest", but there's also times they have to do things when they are either attacking or defending and for all F1 drivers sure it should be second nature, but even a slight disability would make it tough at certain times.
Adjusting those buttons and toggles in a high g force situation would require pretty strong fingers !
Maybe Robert's biggest problem isn't that he carries around a mangled, useless arm ?
Maybe the surgeons did such a fantastic job in reattaching what was by all accounts an alsmost severed limb, that the only drama for him is some weak fingers that he can't move in certain directions ?
I reckon that's why all we've heard is that they needed to change a few things around on the wheel.
Michael Doohan won 5 X 500cc Championships after his leg was nearly amputated.
All they did was move his foot brake and make it a thumb brake
The Kube is definitely racing in a Renault again next year I reckon