Disqualification Ratio

until 2011 Australian 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	Engine Manufacturer	Disqualification Ratio	Disqualifications	Entries
1	Griffin	33.33%	1	3
2	BDA	6.25%	1	16
2	Osella	6.25%	1	16
4	OSCA	3.57%	2	56
5	Zakspeed	2.88%	3	104
6	Veritas	2.30%	2	87
7	TAG	2.22%	3	135
8	Arrows	1.56%	1	64
9	Yamaha	1.54%	4	260
10	Motori Moderni	1.25%	1	80
11	Repco	1.10%	2	181
12	Megatron	1.06%	1	94
13	Ford	1.01%	70	6904
14	Honda	1.00%	9	897
15	Toyota	0.87%	4	459
16	Gordini	0.86%	2	232
17	Cisitalia	0.85%	1	117
18	BMW	0.69%	6	866
19	Climax	0.62%	13	2100
20	BRM	0.53%	6	1139
21	Mercedes	0.52%	4	774
21	Hart	0.52%	2	387
23	Ferrari	0.47%	13	2762
24	Chevrolet	0.44%	2	453
25	Renault	0.41%	6	1478
26	Lamborghini	0.39%	1	256
27	Peugeot	0.39%	1	259
28	Mugen-Honda	0.34%	1	294
29	Petronas	0.33%	1	306
30	Cosworth	0.32%	5	1551
31	Offenhauser	0.28%	1	352
32	Judd	0.25%	1	403
33	Maserati	0.24%	4	1658
34	Alfa Romeo	0.13%	1	786

Finishing position: