Respec for the sidecar pic and anyone who’s had a go – you would not ever, ever find me approaching one of them with a view to getting onboard. My old boss and his mate, who were decent amateur solo racers, once borrowed an outfit with a view to having a go on it at Weston, but they had one practice session (at a hardpack track) and realised just how insane it was to even think about hitting the beach. They couldn’t even get the beast started, they had to tow-start the evil thing behind the van! lol
I once marshalled at Frome when sidecars were part of the programme – might have been their British champs? They were bloody quick anyhow. But I remember one of the fast guys coming out of a hairpin and giving it full loud for thirty yards before he realised his passenger had fallen off (the pilot had “rubbed” him against the posts on the inside) and was being dragged along the outfit by a trapped foot. No sir, not me, no way.