 The MP4/3B never raced, but was tested by Prost, and later his 1988 teammate Ayrton Senna, until the all-new MP4/4 made its track debut at Imola a week before the start of the season (Prost lapped Imola over 2 seconds faster in the MP4/4 than he had in the MP4/3B.The MP4/4 would go on to be the most dominant single season car in F1 history, winning 15 of 1988's 16 races, as well as claiming pole in 15).After finishing the role, the sixth car went to Argentina and is on display at the Juan Manuel Fangio Museum in Balcarce.