It's the 'partly British' that I am trying to interpret. The engine is British, so if the chassis is also, is it a Lester?
Sorry, we're both still in a kerfuffle here

. The chassis is from the Continent. The car was built in the UK from an MG engine and a foreign chassis.
PS I have just re-read the posts for this puzzle and my suggestion that it was partly British and that the engine was the bit from the UK was a tad misleading if read in a certain way. My apologies to anyone who attempted to solve this puzzle. Shouldn't take long now.............