Disqualification Ratio

until 2009 Spanish 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	Disqualification Ratio	Disqualifications	Entries
1	Baird	33.33%	1	3
2	Jicey	20.00%	2	10
3	Boro	12.50%	1	8
4	McRae	7.69%	1	13
5	Midland	5.56%	2	36
	OSCA	5.56%	2	36
	Parnelli	5.56%	1	18
8	Eagle	5.26%	2	38
9	Venturi	3.12%	1	32
10	Tyrrell	2.90%	27	930
11	ATS	2.70%	4	148
12	EuroBrun	2.63%	2	76
13	Zakspeed	2.21%	3	136
14	Onyx	2.08%	1	48
15	Ensign	1.79%	3	168
16	Penske	1.69%	1	59
17	Pacific	1.52%	1	66
18	Super Aguri	1.28%	1	78
19	BAR	1.27%	3	236
20	Benetton	1.15%	6	520
21	Surtees	1.02%	5	488
22	Stewart	1.02%	1	98
23	Gordini	0.90%	2	222
24	McLaren	0.85%	15	1764
25	Cisitalia	0.85%	1	118
26	Osella	0.79%	2	254
27	Toyota	0.78%	2	257
28	Dallara	0.69%	1	144
29	Arrows	0.67%	4	598
30	March	0.66%	5	757
31	Chevron	0.66%	1	152
32	Williams	0.65%	7	1076
33	Ligier	0.65%	4	615
34	Honda	0.65%	1	154
35	BRM	0.63%	5	797
36	Lotus	0.60%	14	2320
37	Prost	0.60%	1	166
38	Brabham	0.58%	8	1391
39	Footwork	0.52%	1	194
39	Kurtis Kraft	0.52%	1	194
41	BMW	0.49%	1	205
42	Ferrari	0.48%	11	2307
43	Sauber	0.46%	2	435
44	Jordan	0.40%	2	500
45	Shadow	0.38%	1	262
46	Minardi	0.30%	2	676
47	Maserati	0.29%	4	1393
48	Renault	0.20%	1	488
49	Cooper	0.19%	3	1579
50	Lola	0.16%	1	615

Finishing position: