Table:
text: British Formula Ford Championship
Champions
Champions
Season Champion Constructor_ Teams_Champion Secondary_Class Nations_Cup Winter_Series_Champion
1983 Andrew Gilbert-Scott Van Diemen Not Held Not Held Not Held Not Held
1984 Dave Coyne Van Diemen Not Held Not Held Not Held Not Held
1985 Bertrand Gachot Van Diemen Not Held Not Held Not Held Not Held
1986 Jason Eliott Van Diemen Not Held Not Held Not Held Not Held
1987 Eddie Irvine Van Diemen Not Held Not Held Not Held Not Held
1988 Derek Higgins Van Diemen Not Held Not Held Not Held Not Held
1989 Bernard Dolan Reynard Not Held Not Held Not Held Not Held
1990 Michael Vergers Van Diemen Not Held Not Held Not Held Not Held

Question: Who is the team champion of the 1989 season in the British Formula Ford Championship?