Race Win Ratio

until 1970 German GP

Ignore Indy 500 races
Ignore non-championship races
Note: records involving non-championship races may be inaccurate due to incomplete data.

Finishing position:

Pos	Car Manufacturer	Race Win Ratio	Race Wins	Entries
1	Ferguson	50.00%	1	2
1	Mercury	50.00%	1	2
3	EMW	33.33%	7	21
4	IFA	25.00%	2	8
4	Reif	25.00%	2	8
6	Alfa Romeo	23.33%	35	150
7	Mercedes	23.26%	10	43
8	Vanwall	14.61%	13	89
9	Watson	13.64%	3	22
10	Matra	13.04%	12	92
11	Lancia	12.12%	4	33
12	Epperly	11.76%	2	17
13	Ferrari	10.92%	116	1062
14	March	8.16%	4	49
15	BMW	7.87%	7	89
16	Lotus	7.40%	100	1352
17	Brabham	7.05%	40	567
18	Simca-Gordini	6.74%	12	178
19	Connaught	6.50%	21	323
20	Simca	6.45%	2	31
21	Maserati	5.89%	82	1393
22	Lola	5.52%	9	163
23	Eagle	5.41%	2	37
24	ERA	5.24%	12	229
25	Cisitalia	5.08%	6	118
26	McLaren	4.76%	8	168
26	Ford	4.76%	1	21
28	Talbot-Lago	4.52%	19	420
29	BRM	4.50%	24	533
30	AFM	4.26%	2	47
31	Cooper	4.19%	66	1577
32	Honda	4.17%	2	48
33	Gordini	3.60%	8	222
34	BRP	3.23%	1	31
35	Porsche	3.18%	5	157
36	OSCA	2.78%	1	36
37	Kuzma	2.70%	1	37
38	Kurtis Kraft	2.58%	5	194
39	Veritas	2.25%	2	89
40	MG	2.17%	1	46
41	LDS	2.00%	3	150
42	Frazer-Nash	1.85%	1	54
43	Bugatti	1.79%	1	56
44	Delahaye	1.53%	2	131
45	HWM	1.12%	2	179

Finishing position: