Race Win Ratio

until 1974 Swedish 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	Tyrrell	15.70%	19	121
9	Vanwall	14.61%	13	89
10	Hesketh	14.29%	1	7
11	Watson	13.64%	3	22
12	Lancia	12.12%	4	33
13	Epperly	11.76%	2	17
14	Ferrari	10.81%	127	1175
15	Matra	9.63%	13	135
16	Lotus	9.40%	148	1575
17	BMW	7.87%	7	89
18	Simca-Gordini	6.74%	12	178
19	Connaught	6.50%	21	323
20	Simca	6.45%	2	31
21	Brabham	6.00%	47	783
22	Maserati	5.89%	82	1393
23	Eagle	5.26%	2	38
24	ERA	5.24%	12	229
25	Cisitalia	5.08%	6	118
26	Ford	4.76%	1	21
27	Talbot-Lago	4.52%	19	420
28	AFM	4.26%	2	47
29	Cooper	4.18%	66	1579
30	Honda	4.17%	2	48
31	BRM	3.99%	30	752
32	McLaren	3.91%	20	511
33	Gordini	3.60%	8	222
34	BRP	3.23%	1	31
35	Porsche	3.18%	5	157
36	Lola	2.85%	9	316
37	OSCA	2.78%	1	36
38	Kuzma	2.70%	1	37
39	Kurtis Kraft	2.58%	5	194
40	March	2.37%	8	338
41	Veritas	2.25%	2	89
42	MG	2.17%	1	46
43	LDS	2.00%	3	150
44	Frazer-Nash	1.85%	1	54
45	Bugatti	1.79%	1	56
46	Delahaye	1.53%	2	131
47	Chevron	1.45%	1	69
48	HWM	1.12%	2	179
49	Surtees	1.08%	3	278

Finishing position: