Retirement Ratio

1989 British GP
1990 French GP

until 1989 French 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	Pratt & Whitney	66.67%	4	6
33	Corvette	66.67%	2	3
35	Francis	61.76%	21	34
36	Salmson	60.00%	9	15
	Tecno	60.00%	9	15
	Novi	60.00%	6	10
	Singer	60.00%	3	5
40	Citroën	58.82%	10	17
41	Hart	56.95%	127	223
42	Vanwall	56.67%	51	90
43	Milano	55.56%	5	9
44	Veritas	55.17%	48	87
45	Zakspeed	54.81%	57	104
46	Scarab	54.55%	6	11
47	Megatron	53.19%	50	94
48	Offenhauser	53.12%	187	352
49	Judd	51.72%	75	145
50	Lancia	51.43%	18	35
51	Renault	51.09%	258	505
52	BMW	50.00%	259	518
	Talbot	50.00%	41	82
	Jaguar	50.00%	9	18
	Lamborghini	50.00%	7	14
	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
62	Simca-Gordini	49.70%	83	167
63	Gordini	49.14%	114	232
64	Bugatti	49.09%	27	55
65	Alfa Romeo	48.47%	381	786
66	Fiat	47.37%	9	19
67	Lotus	44.83%	39	87
68	JAP	43.90%	18	41
69	BRM	43.90%	500	1139
70	Matra	43.78%	81	185
71	Osella	43.75%	7	16
72	Cisitalia	42.74%	50	117
73	Maserati	42.70%	708	1658
74	MG	40.82%	20	49
75	Kuchen	40.00%	4	10
75	Castellotti	40.00%	2	5
77	Alta	38.76%	150	387
78	Ford	38.10%	2068	5428
79	BDA	37.50%	6	16
79	Kollektiv	37.50%	3	8
81	ERA	37.00%	84	227
82	Butterworth	36.84%	7	19
83	TAG	36.30%	49	135
84	Honda	36.27%	107	295
85	Amilcar	36.00%	9	25
86	Repco	35.36%	64	181
87	Riley	35.19%	19	54
88	Borgward	34.38%	11	32
89	Frazer-Nash	34.04%	16	47
90	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
97	Climax	33.14%	696	2100
98	Ferrari	32.83%	542	1651
99	Mercedes	32.56%	14	43
100	Delage	31.94%	23	72
101	Talbot-Lago	31.27%	106	339
102	Chevrolet	31.13%	141	453
103	DB	30.00%	3	10
104	Simca	29.41%	10	34
105	FVC	29.25%	31	106
106	Cosworth	27.10%	248	915
107	OSCA	26.79%	15	56
108	Rover	26.67%	4	15
109	Bristol	25.41%	77	303
110	Alvis	25.00%	1	4
	Lagonda	25.00%	1	4
	Lycoming	25.00%	1	4
	Martin	25.00%	1	4
114	Lea-Francis	24.17%	29	120
115	Delahaye	22.90%	30	131
116	Connaught	21.01%	29	138
117	Peugeot	20.69%	6	29
118	Smith-Chevrolet	20.00%	1	5
119	Porsche	16.76%	29	173
120	Panhard	16.67%	1	6
120	Vincent	16.67%	1	6
122	Yamaha	7.14%	1	14

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