This thread stirred some memories! Early days, with no money for a van, my mechanic/mate Peter Bryant and I used to take our racing Bantam up to Cadwell Park and other circuits in a box sidecar on a 350 Panther! We then graduated to the Thames 15cwt, eventually squeezing in a Zodiac 6 engine, with a shortened propshaft....you could go round a roundabout in this non-widened rocketship, and with a touch more throttle than strictly necessary lift the inside rear wheel so it spun violently. Unfortunately, although the the black plumes of rubber smoke used to look spectacular to spectators, they also poured into the van through all the rust holes in the wheel arches, limiting the exhibition time to as long as you could see !!! Most irresponsible !! (tee hee!!) We quickly learnt never to park in the paddock next to the Thames of the late Dave Nixon at Bantam Racing Club meetings if we were staying overnight, because as well as the Boyer Bonneville, he always seemed to have a young lady aboard, leading to all-night squeakings from the suspension for some reason........
It has all got a tad too serious these days....traffic density would make some of the things we did positively lethal, sadly>