No, actually I think this is the 1954 Halton-Tojeiro registered YKX 2.
The body was donated by Rochdale Panels and it had been designed originally to fit a Connaught ASLR (no wonder I thought it looked like a Connaught!), but the finished car "had a passing resemblance to an Aston-Martin DB3S". It had a Climax engine.
The name comes from RAF Halton, whose apprentices' Halton Racing Car Club built the car using a chassis supplied by John Tojeiro.
The car was raced extensively in club meetings from 1956 to 1960 and still exists - it was For Sale recently, when for some reason it was described as a "Hailton-Tojeiro Climax" with the extra 'i' in it.