It's on the V5C as a 4/4 with the Fiat 2 litre engine and correct engine number. The previous owner, in renovating it, replaced the badge above the radiator to a +4 one, so I get asked about my +4 but I never to accept it as a +4 or tell them it's really a 4/4.
I was curious to know what the differences were between the 4/4 and +4 of that era.