The car wasn’t competitive to fight for the championship, but both drivers managed to take wins during the season.
Nigel Mansell won at the Hungarian GP, while Gerhardt Berger won at the Portuguese GP back in 1989 season.
On the other hand his team-mate Alain Prost took just two pole position during the season, but he won four races in 1989.
The engine of Ferrari 639 was 3.5-liter V12
The maximum power was hit 685 hp
Who designed Ferrari 639
The designer was John Barnard – the British man who for the first time to introduce semi-automatic gearbox for Ferrari in 1989.