1986
National Service (11 months).

1987
Finnish and Scandinavian Formula Ford 1600.

1988
Finnish and Scandinavian Champion Formula Ford 1600.
European Champion Formula Ford 1600 (14 races with 14 wins, 14 fastest laps, 10 poles!).

1989 - 1990
British Formula 3: 6 wins, Vice-Champion.

1990
Formula 3: 2nd at the GP Macau.

1991 - 1994
Japanese Formula 3000.

1994
Formula One with Lotus.

1995 - 1997
Formula One with Tyrrell.

1998
Formula One with Arrows.

1999
Six races Formula One for Ferrari. Replaced Michael Schumacher after his accident at the 1999 British Grand Prix.

2000
Formula One with Sauber.