Retirement Ratio

1988 Australian GP
1989 Japanese GP

until 1988 Japanese GP

Include 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
	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
27	AFM	87.50%	7	8
28	ATS (Ita)	84.62%	11	13
29	Motori Moderni	83.75%	67	80
30	Weslake	76.00%	19	25
31	Hudson	75.00%	3	4
32	Pratt & Whitney	66.67%	4	6
32	Corvette	66.67%	2	3
34	Francis	61.76%	21	34
35	Salmson	60.00%	9	15
	Tecno	60.00%	9	15
	Singer	60.00%	3	5
38	Citroën	58.82%	10	17
39	Hart	56.95%	127	223
40	Vanwall	56.67%	51	90
41	Milano	55.56%	5	9
42	Veritas	55.17%	48	87
43	Zakspeed	54.90%	56	102
44	Scarab	54.55%	6	11
45	Megatron	52.17%	48	92
46	Renault	51.53%	253	491
47	Lancia	51.43%	18	35
48	Judd	51.11%	46	90
49	BMW	50.00%	259	518
	Talbot	50.00%	41	82
	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
	Offenhauser	50.00%	1	2
59	Simca-Gordini	49.70%	83	167
60	Gordini	49.14%	114	232
61	Bugatti	49.09%	27	55
62	Alfa Romeo	48.47%	381	786
63	Fiat	47.37%	9	19
64	Osella	46.67%	7	15
65	Lotus	44.83%	39	87
66	JAP	43.90%	18	41
67	BRM	43.90%	500	1139
68	Matra	43.78%	81	185
69	Cisitalia	42.74%	50	117
70	Maserati	42.70%	708	1658
71	MG	40.82%	20	49
72	Kuchen	40.00%	4	10
72	Castellotti	40.00%	2	5
74	Alta	38.76%	150	387
75	Ford	38.47%	2024	5261
76	BDA	37.50%	6	16
76	Kollektiv	37.50%	3	8
78	Honda	37.18%	103	277
79	ERA	37.00%	84	227
80	Butterworth	36.84%	7	19
81	TAG	36.30%	49	135
82	Amilcar	36.00%	9	25
83	Repco	35.36%	64	181
84	Riley	35.19%	19	54
85	Borgward	34.38%	11	32
86	Frazer-Nash	34.04%	16	47
87	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
94	Climax	33.14%	696	2100
95	Mercedes	32.56%	14	43
96	Ferrari	32.35%	529	1635
97	Delage	31.94%	23	72
98	Talbot-Lago	31.27%	106	339
99	Chevrolet	31.13%	141	453
100	DB	30.00%	3	10
101	Simca	29.41%	10	34
102	FVC	29.25%	31	106
103	Cosworth	27.10%	248	915
104	OSCA	26.79%	15	56
105	Rover	26.67%	4	15
106	Bristol	25.41%	77	303
107	Alvis	25.00%	1	4
	Lagonda	25.00%	1	4
	Lycoming	25.00%	1	4
	Martin	25.00%	1	4
111	Lea-Francis	24.17%	29	120
112	Delahaye	22.90%	30	131
113	Connaught	21.01%	29	138
114	Peugeot	20.69%	6	29
115	Smith-Chevrolet	20.00%	1	5
116	Porsche	16.76%	29	173
117	Panhard	16.67%	1	6
117	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