Highest rate of fastest race laps
The data below represent the amount of the races in which an engine manufacturer drove the fastest race lap.

Engine # 1 Offenhauser 83,333%   2 Climax 45,918%   3 Ford 30,930%   4 Mercedes-Benz 29,231%   5 Ferrari 27,814%   6 Renault 27,078%   7 TAG 26,471%   8 Lancia 25,000%   9 Vanwall 20,690%   10 Maserati 17,593%   11 Honda 17,015%   12 Novi 16,667%   13 BMW 13,253%   14 Repco 12,121%   15 Weslake 11,111%   16 Alfa Romeo 8,889%   17 BRM 7,000%   18 Matra 3,968%   19 Judd 3,947%   20 Playlife 3,125%   21 Supertec 3,030%   22 Gordini 2,500%   23 Hart 1,266%   24 Peugeot 0,870%   25 Toyota 0,862%   26 Cosworth 0,820%