Friend asked me this yesterday and I thought it would be an easy answer related to the 2+2. body style. I was somewhat surprised to discover Ferrari (on their website) and period road tests refer to the car as the 250GT 2+2 although it says 250 GT/E on the stampings. So is the E referring to the body style or is it a reference to the Tipo 128 E engine? A google search and a search here didn’t turn anything conclusive up so thought I would ask the question.