A summary of Dieter Quester's career is outlined below:

• 1958-1961: European Champion outboard speed boats.
• 1963-65: Motorcycle Racing (BMW, Norton, NSU).
• 1966: First contact with BMW. Austrian Touring Car Champion and winner of the Int. BMW Motorsport Trophy (BMW TISA).
• 1967: BMW factory driver.
• 1968: European Touring Car Champion (BMW 2002 TI). 4th European Hill Climb Championship (BMW Prototype).
• 1969: 3rd: European Hill Climb Championship (BMW Prototype). European Touring Car Champion (BMW 2002 TI, 2002 Turbo).
• 1970: 4th: F2 European Championship (BMW Dornier F2).
• 1971: 3rd: F2 European Championship (March-BMW F2).
• 1972: 4th: European Sports Car Championship 2 ltr (Chevron - BMW).
• 1973: 2nd: European Touring Car Championship (BMW CSL 3.5).
• 1974: F2 Team Surtees (Surtees TS9). F2 European Championship Team Harper Hong Kong (March BMW F2).
• 1975: European Touring Car Championship (BMW CSL 3.5).
• 1976: World Championship for Makes, 2 overall wins (BMW CSL G5).
• 1977: European Touring Car Champion (Alpina BMW 3.5).
• 1978-79: World Championship for Makes, 3 overall wins (BMW 320 G5).
• 1980-83: Procar Championship (BMW M1).
• 1983: European Touring Car Champion (Schnitzer BMW 635 CSI).
• 1984: Endurance races for Team Fitzpatrick (Porsche 956).
• 1985: European Touring Car Championship (BMW 320). Sports Cars for Team Goodrich (Lola Mazda).
• 1986: European Touring Car Championship (BMW 320 G5). Endurance races Team Goodrich (Porsche 962). 24 Le Mans, Team Sauber (Sauber Mercedes).
• 1987: European Touring Car Championship (BMW M3). 24hr Le Mans Team Sauber (Sauber Mercedes).
• 1988-91: Int. German Touring Car Championship DTM (BMW M3).
• 1989: Endurance races Team Spice USA (Spice Pontiac).
• 1992: European Touring Car Championship CC (BMW).
• 1993: Austrian Int. Touring Car Champion (BMW M3).
• 1994: STW Championship (BMW 320).
• 1995: IMSA Championship (BMW M3). Organisation together with Team PTG of the first steps for BMW in the US GT racing scene.
• 1996: IMSA Championship Team PTG (BMW M3 GT).
• 1997: IMSA Championship Team PTG (BMW M3 GT).
• 1998: US Sportscar Championship Team PTG (BMW M3 GT). Italian Touring Mastercup, Team Duller Motorsport (BMW M3).
• 1999: ALMS Championship Team PTG (BMW M3 GT). Italian Touring Mastercup Team Duller Motorsprt (BMW M3 G N).
• 2000: ALMS Championship Team RWS (Porsche GT3). FIA GT Championship Team RWS (Porsche GTN). Italian Touring Mastercup Team Duller Motorsport (BMW M3).

Summary:

• 4 Times European Touring Car Champion.
• 41 24hr and 12hr races (Spa, Le Mans, Nurburgring, Daytona, Sebring). 4 overall wins at Spa.
• Over 600 race starts. More than 250 podium results.
• One of the first drivers to create a special fitness program and diet for motor sport activities.