Race Win Ratio

until 1997 Brazilian GP

Include 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	Mercedes	23.26%	10	43
7	Ralt	16.67%	2	12
8	Williams	15.20%	100	658
9	Vanwall	14.61%	13	89
10	Lancia	12.12%	4	33
11	Alfa Romeo	10.26%	35	341
12	Ferrari	9.96%	188	1888
13	Matra	9.63%	13	135
14	McLaren	9.21%	124	1346
15	BMW	7.87%	7	89
16	Lotus	7.67%	178	2320
17	Benetton	7.26%	26	358
18	Simca-Gordini	6.74%	12	178
19	Lyncar	6.67%	1	15
20	Connaught	6.50%	21	323
21	Renault	6.47%	15	232
22	Simca	6.45%	2	31
23	Maserati	5.90%	82	1390
24	Wolf	5.36%	3	56
25	Eagle	5.26%	2	38
26	ERA	5.24%	12	229
27	Cisitalia	5.08%	6	118
28	Brabham	4.96%	69	1391
29	Ford	4.76%	1	21
30	Talbot-Lago	4.52%	19	420
31	AFM	4.26%	2	47
32	Cooper	4.18%	66	1579
33	Honda	4.17%	2	48
34	BRM	3.76%	30	797
35	Gordini	3.60%	8	222
36	Tyrrell	3.57%	31	868
37	Penske	3.39%	2	59
38	BRP	3.23%	1	31
39	Porsche	3.18%	5	157
40	OSCA	2.78%	1	36
41	Veritas	2.25%	2	89
42	MG	2.17%	1	46
43	LDS	2.00%	3	150
44	Hesketh	1.85%	2	108
44	Frazer-Nash	1.85%	1	54
46	March	1.85%	14	757
47	Bugatti	1.79%	1	56
48	Surtees	1.64%	8	488
49	Delahaye	1.53%	2	131
50	Ligier	1.46%	9	615
50	Lola	1.46%	9	615
52	HWM	1.12%	2	179
53	Shadow	0.76%	2	262
54	Chevron	0.66%	1	152

Finishing position: