The front also is a near dead-ringer for the Morgan SLR - with good reason:
"Towards the end of 1963 former British Rally Champion and Racing Driver John Sprinzel joined forces with noted engineer and Morgan racer Chris Lawrence, under the Sprintzel Lawrence Racing (SLR) banner, to design and build a sports car based on a Triumph TR4 powered ladder frame Morgan +4, with a similar chassis to the one that Chris had co driven with Richard Shepherd - Barron to a class victory at Le Mans in 1962.
From what I can gather Triumph racer John Hurrell managed to secure some funding for the SLR team and after seeing Chris Spenders drawings for the proposed Williams and Pritchard built bodywork for the Morgan & Triumph SLR car John asked if a similar SLR body could be fitted to his Triumph TR4 that he had been racing since 1960.
As things worked out the Triumph with a slightly shorter chassis was the first to be taken to Williams and Pritchard to have an aluminium SLR body built around it. Neil Dangerfield is known to have been winning races in this car as late as 1967 and the Triumph SLR went down in the record books as being the last to leave the start line at Goodwood as the scratch entry in the last, handicap, race held at the Circuit before it closed in 1966.
Neil drove the Triumph SLR 31 years later at the request of Lord March on a 3 lap demonstration when the Goodwood circuit was reopened in 2006.
Note the registration SAH 137 was originally issued to a Triumph TR3A owned by Jim Hurrell who transferred the number to the Triumph TR4 that was fitted with the SLR body and later sold it to Neil"