Oh yes John it was legal though I did break one of the rules. Under the regs as they were at that time one could 'rebody' a car and just meet some basic rules like safety glass (na), wipers (na), door locks (na), lights (no problem, this one had more candlepower than horse power). The rule I broke related to no alterations to the chassis which I did by moving the engine back 4 1/2", it I had not it would have been dangerously front heavy and as it was it only really balanced when the battery was moved to the back.
There was (still is) a 6 montly check on brakes, steering etc etc and at one of these a bystander commented on the 'safety' of the wicker body and his tone really pissed me off so I took a deep breath, careful aim and gave it an almighty kick in the withers which of course made not an impression on the wicker. Then I offered to do the same test on his car.