[1] Jochen Neerpasch, the head of BMW's Motorsports division, was the first to propose the idea of a one-make championship.

Mosley was the head of March Engineering, a constructor which BMW was partnered with in their factory efforts in the European Formula Two Championship.

[4] To attract Formula One drivers to the championship, seats were guaranteed in the Procar races by cars which were entered by the factory BMW team.

The five fastest Formula One drivers from Friday practice were assigned to the factory team, and were even guaranteed the first five grid positions for the Procar race, regardless of their qualifying times in the cars.

[1] As Scuderia Ferrari and Renault were selling roadcars themselves, they did not allow their Formula One drivers to participate and implicitly endorse BMW.

[8] Modified into the M88/1 by a team led by Paul Rosche,[10] it was capable of producing 470 horsepower at 9000 rpm,[8] compared to 277 hp from the standard M1's engine.

The 5-speed ZF gearbox housing from the road car was retained,[8] but with multiple gear ratios allowed, as well as its own oil cooler.

These included Mario Andretti, Patrick Depailler, Emerson Fittipaldi, James Hunt, Jean-Pierre Jarier, Alan Jones, Jacques Laffite, Niki Lauda, Nelson Piquet, Didier Pironi, Clay Regazzoni, and John Watson.

Teo Fabi, Tiff Needell, Hans-Georg Bürger and Michael Bleekemolen were invited to drive in the factory BMW cars as well although they were not Formula One drivers at the time.

[12] For the second running of the Procar Championship, the schedule was altered and expanded so that the races did not rely exclusively on Formula One events.

Other Formula One drivers to participate during Grands Prix were Mario Andretti, Derek Daly, Jean-Pierre Jarier, Riccardo Patrese, and Alain Prost.

Newcomers included personal teams from Arturo Merzario, Dieter Quester, and Helmut Marko, as well as Swiss sportscar manufacturer Sauber.

[16] At the start of the 1980 season, BMW announced their intention to enter Formula One as an engine supplier for Brabham.

[18] As BMW shifted towards Formula One, the company ended their plans to enter the Group 5 category after the construction of only two race cars.

[20] Alfa Romeo intended to use identical copies of the car for a resurrected Procar series, but the plans never came to fruition and only the prototype was built.

[21] On June 30, 2008, BMW announced plans to revive the Procar series in an exhibition event at the 2008 German Grand Prix at the Hockenheimring.

[22] The line-up included former competitors Christian Danner, Harald Grohs, Niki Lauda, Dieter Quester, and Marc Surer.