The Brazilian summoned some of his greatest career drives using the car, and in fact led the championship from Prost at the 1/3 distance, before the Frenchman used the technologically superior FW15C to overhaul Senna.
All the while though, the Brazilian’s IndyCar star team-mate Michael Andretti struggled, unable to get to grips with grand prix machinery. He was eventually let go after that year’s Italian GP.
Häkkinen was waiting in the wings – and had spent all year preparing. Typically, the Finn is ice-cool in his recollection of the weekend.
“No pressure, just doing my job,” he tells Adam Cooper. “I knew the car 100%, so was able to put it on the absolute limit.”
He expanded on the experience earlier last year to Motor Sport – and the consternation it caused.
“I never believed anyone could go quicker,” he said. “I was just so quick in that car. Ayrton understood there were other fast drivers out there but when I came in and kicked his arse on my first race weekend he wanted to understand what I was doing.
“As a three-times world champion he was very mature, very confident, so he asked me, ‘Mika, what did you do?’ And I said, ‘Ayrton, it’s balls,’ and he went berserk, got really upset with me.