There has never been a Formula 1 constructor with a name beginning with Q.
There has been only one F1 driver with a name beginning with Q. Austria’s Dieter Quester.
His father Fritz Quester was originally a chimney sweep, but in 1934 he established Quester Baustoffhandel GmbH, distributing building materials. This had developed into Austria’s biggest home improvement business, with 24 stores across the country.
Dieter was born in 1939 and grew up in comfortable circumstances after the war. At 18 he was able to afford to begin racing motor boats and he won European outboard 500cc titles in 1958 and 1962. This was followed by a period in motorcycle racing, using BMW, Norton and NSU machinery.
In 1965 he tried cars for the first time and the following year, driving a BMW 1800, was the winner of the Austrian Touring Car Championship. The following year he became a BMW factory driver and married Julianna, the daughter of BMW Motorsport boss Alex Von Falkenhausen.
Quester won European Touring Car titles in 1968 and 1969 in BMW 2002s. He would win again in 1977 in a BMW 3.0 CSL and in 1983 in a BMW 635CSi. He joined the BMW Formula 2 in 1969, alongside Jo Siffert and Hubert Hahne and the following year won the Preis von Baden-Württemberg und Hessen at Hockenheim, beating a class field which included Clay Regazzoni, Ronnie Peterson, Emerson Fittipaldi and Carlos Reutemann. In 1971 he won again, this time at Monza in a March-BMW entered by Eifelland Wohnwagenbau and scored five second places that year and finished third in the European Championship behind Peterson and Reutemann. He was keen to get into F1 but could not get a ride although he eventually made his F1 debut, renting a Surtees for the Austrian GP of 1974. That would be it for F1, but he returned to touring cars and GTs and raced in the BMW Procar series in 1979 and 1980.
He continues to race when he can, despite being in his late seventies.