Retirement Ratio

1966 Border 100
1966 British GP
1967 ACF GP

until 1966 ACF 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
	Ausper	100.00%	1	1
	CTA	100.00%	1	1
	Dodge	100.00%	1	1
	Eclipse	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
	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
	Vitesse	100.00%	1	1
24	AFM	87.50%	7	8
25	ATS (Ita)	83.33%	10	12
26	Hudson	75.00%	3	4
27	Corvette	66.67%	2	3
28	Francis	61.76%	21	34
29	Salmson	60.00%	9	15
	Novi	60.00%	6	10
	Singer	60.00%	3	5
32	Citroën	58.82%	10	17
33	Vanwall	56.67%	51	90
34	Milano	55.56%	5	9
35	Veritas	55.17%	48	87
36	Lotus	54.84%	17	31
37	Scarab	54.55%	6	11
38	Offenhauser	53.12%	187	352
39	Honda	52.94%	9	17
40	Lancia	51.43%	18	35
41	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
49	Simca-Gordini	49.70%	83	167
50	Gordini	49.14%	114	232
51	Bugatti	49.09%	27	55
52	Fiat	47.37%	9	19
53	JAP	43.90%	18	41
54	Chevrolet	42.86%	3	7
54	Repco	42.86%	3	7
56	Cisitalia	42.74%	50	117
57	Maserati	42.52%	668	1571
58	MG	40.82%	20	49
59	Kuchen	40.00%	4	10
59	Castellotti	40.00%	2	5
61	BRM	39.81%	254	638
62	Alta	38.76%	150	387
63	Kollektiv	37.50%	3	8
64	ERA	37.00%	84	227
65	Butterworth	36.84%	7	19
66	Amilcar	36.00%	9	25
67	BMW	35.29%	60	170
68	Riley	35.19%	19	54
69	Frazer-Nash	34.04%	16	47
70	Aston Martin	33.33%	12	36
	Borgward	33.33%	10	30
	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
78	Climax	33.21%	647	1948
79	Mercedes	32.56%	14	43
80	Delage	31.94%	23	72
81	Talbot-Lago	31.27%	106	339
82	Ferrari	31.18%	304	975
83	Alfa Romeo	30.04%	79	263
84	Cosworth	30.00%	3	10
84	DB	30.00%	3	10
86	Simca	29.41%	10	34
87	Rover	28.57%	2	7
88	OSCA	26.79%	15	56
89	Bristol	25.41%	77	303
90	Alvis	25.00%	1	4
	Lagonda	25.00%	1	4
	Lycoming	25.00%	1	4
93	Ford	24.78%	28	113
94	Lea-Francis	24.17%	29	120
95	Delahaye	22.90%	30	131
96	Connaught	21.01%	29	138
97	Porsche	16.76%	29	173
98	Panhard	16.67%	1	6
98	Vincent	16.67%	1	6
100	Peugeot	13.04%	3	23

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