Retirement Ratio

2009 Monaco GP
2010 Spanish GP

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:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ret dsq dpts cpts

Pos	Engine Manufacturer	Retirement Ratio	Retirements	Entries
1	Emeryson	100.00%	3	3
	Cummins	100.00%	2	2
	Platè	100.00%	2	2
	Studebaker	100.00%	2	2
	Ardun	100.00%	1	1
	ATS	100.00%	1	1
	Ausper	100.00%	1	1
	CTA	100.00%	1	1
	Dodge	100.00%	1	1
	Eclipse	100.00%	1	1
	Falconer & Dunn-Ford	100.00%	1	1
	Giaur	100.00%	1	1
	GK	100.00%	1	1
	Guyot	100.00%	1	1
	Jicey	100.00%	1	1
	Lombard	100.00%	1	1
	Lucas-Chevrolet	100.00%	1	1
	MacKay	100.00%	1	1
	Orley	100.00%	1	1
	Patterson	100.00%	1	1
	Pozzoli	100.00%	1	1
	PS	100.00%	1	1
	Ricardian	100.00%	1	1
	Stanguellini	100.00%	1	1
	Summer	100.00%	1	1
	Vega	100.00%	1	1
	Vitesse	100.00%	1	1
28	AFM	87.50%	7	8
29	ATS (Ita)	84.62%	11	13
30	Motori Moderni	83.75%	67	80
31	Weslake	76.00%	19	25
32	Hudson	75.00%	3	4
33	Arrows	68.75%	44	64
34	Pratt & Whitney	66.67%	4	6
34	Corvette	66.67%	2	3
36	Francis	61.76%	21	34
37	Salmson	60.00%	9	15
	Tecno	60.00%	9	15
	Novi	60.00%	6	10
	Singer	60.00%	3	5
41	Citroën	58.82%	10	17
42	Vanwall	56.67%	51	90
43	Hart	56.59%	219	387
44	Milano	55.56%	5	9
45	Veritas	55.17%	48	87
46	Supertec	55.10%	54	98
47	Zakspeed	54.81%	57	104
48	Scarab	54.55%	6	11
49	Megatron	53.19%	50	94
50	Offenhauser	53.12%	187	352
51	Lancia	51.43%	18	35
52	Talbot	50.00%	41	82
	European	50.00%	17	34
	Jaguar	50.00%	9	18
	Plate	50.00%	4	8
	Steyr	50.00%	2	4
	Allard	50.00%	1	2
	BNC	50.00%	1	2
	de Coucy	50.00%	1	2
	Monaci	50.00%	1	2
61	Simca-Gordini	49.70%	83	167
62	Gordini	49.14%	114	232
63	Bugatti	49.09%	27	55
64	Alfa Romeo	48.47%	381	786
65	Yamaha	48.46%	126	260
66	Ilmor	47.50%	76	160
67	Fiat	47.37%	9	19
68	Peugeot	45.95%	119	259
69	Lotus	44.83%	39	87
70	JAP	43.90%	18	41
71	BRM	43.90%	500	1139
72	Matra	43.78%	81	185
73	Osella	43.75%	7	16
74	Cisitalia	42.74%	50	117
75	Maserati	42.70%	708	1658
76	Asiatech	42.65%	29	68
77	Lamborghini	42.58%	109	256
78	Judd	40.94%	165	403
79	MG	40.82%	20	49
80	BMW	40.02%	337	842
81	Kuchen	40.00%	4	10
81	Castellotti	40.00%	2	5
83	Mugen-Honda	39.80%	117	294
84	Ford	39.12%	2701	6904
85	Alta	38.76%	150	387
86	BDA	37.50%	6	16
86	Kollektiv	37.50%	3	8
88	ERA	37.00%	84	227
89	Butterworth	36.84%	7	19
90	Renault	36.65%	494	1348
91	TAG	36.30%	49	135
92	Amilcar	36.00%	9	25
93	Repco	35.36%	64	181
94	Fondmetal	35.29%	12	34
95	Riley	35.19%	19	54
96	Honda	34.45%	309	897
97	Borgward	34.38%	11	32
98	Frazer-Nash	34.04%	16	47
99	Aston Martin	33.33%	12	36
	Austin	33.33%	1	3
	BMC	33.33%	1	3
	Buick	33.33%	1	3
	Cadillac	33.33%	1	3
	Rapier	33.33%	1	3
	Speluzzi	33.33%	1	3
106	Climax	33.14%	696	2100
107	Acer	32.35%	11	34
108	Ferrari	32.23%	836	2594
109	Petronas	32.03%	98	306
110	Cosworth	31.95%	445	1393
111	Delage	31.94%	23	72
112	Playlife	31.63%	31	98
113	Talbot-Lago	31.27%	106	339
114	Chevrolet	31.13%	141	453
115	DB	30.00%	3	10
116	Mercedes	29.55%	172	582
117	Simca	29.41%	10	34
118	FVC	29.25%	31	106
119	OSCA	26.79%	15	56
120	Rover	26.67%	4	15
121	Toyota	25.79%	106	411
122	Bristol	25.41%	77	303
123	Alvis	25.00%	1	4
	Lagonda	25.00%	1	4
	Lycoming	25.00%	1	4
	Martin	25.00%	1	4
127	Lea-Francis	24.17%	29	120
128	Delahaye	22.90%	30	131
129	Mecachrome	21.88%	7	32
130	Connaught	21.01%	29	138
131	Smith-Chevrolet	20.00%	1	5
132	Porsche	18.38%	34	185
133	Panhard	16.67%	1	6
133	Vincent	16.67%	1	6

Finishing position:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ret dsq dpts cpts