Retirement Ratio

1975 Spanish GP
1975 Swiss GP
1976 BRDC International Trophy

until 1975 BRDC International Trophy

Ignore Indy 500 races
Include non-championship races

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	Car Manufacturer	Retirement Ratio	Retirements	Entries
1	Adams	200.00%	2	1
1	Ferguson	200.00%	2	1
3	Nichels	150.00%	3	2
4	Pawl	133.33%	4	3
5	Bromme	125.00%	5	4
6	Schroeder	100.00%	6	6
	Christensen	100.00%	2	2
	Balsa	100.00%	1	1
	Bugatti	100.00%	1	1
	Del Roy	100.00%	1	1
	Derrington-Francis	100.00%	1	1
	Elder	100.00%	1	1
	EMW	100.00%	1	1
	Greifzu	100.00%	1	1
	Hall	100.00%	1	1
	Klenk	100.00%	1	1
	Milano	100.00%	1	1
	Nacke	100.00%	1	1
	Politoys	100.00%	1	1
	Shannon	100.00%	1	1
	Snowberger	100.00%	1	1
	Sutton	100.00%	1	1
	Tec-Mec	100.00%	1	1
	Turner	100.00%	1	1
25	Williams	83.33%	5	6
26	ATS (Ita)	80.00%	8	10
26	Lancia	80.00%	8	10
28	Aston	75.00%	3	4
29	De Tomaso	72.22%	13	18
30	Simca-Gordini	68.97%	20	29
31	Eagle	68.57%	24	35
32	ERA	66.67%	8	12
	Scirocco	66.67%	6	9
	Alta	66.67%	4	6
	JBW	66.67%	4	6
	Dunn	66.67%	2	3
	Ewing	66.67%	2	3
38	Connaught	65.38%	34	52
39	Vanwall	65.15%	43	66
40	Tecno	64.29%	9	14
41	Deidt	62.50%	5	8
42	Gordini	61.39%	62	101
43	Veritas	61.11%	11	18
44	Scarab	60.00%	6	10
45	Honda	56.52%	26	46
46	Kurtis Kraft	55.67%	108	194
47	AFM	55.56%	5	9
48	Watson	54.55%	12	22
48	Aston Martin	54.55%	6	11
50	Shadow	53.42%	39	73
51	Hesketh	52.94%	9	17
52	HWM	52.08%	25	48
53	Maserati	51.35%	209	407
54	Iso Marlboro	50.88%	29	57
55	LDS	50.00%	4	8
	Frazer-Nash	50.00%	2	4
	Token	50.00%	2	4
	Connew	50.00%	1	2
	De Klerk	50.00%	1	2
	Marchese	50.00%	1	2
	Pankratz	50.00%	1	2
	Pearce	50.00%	1	2
63	Talbot-Lago	49.38%	40	81
64	BRM	47.96%	259	540
65	March	47.08%	121	257
66	Surtees	45.89%	67	146
67	Emeryson	42.86%	3	7
68	Lotus	42.40%	290	684
69	Brabham	42.27%	197	466
70	BRP	42.11%	8	19
70	Ensign	42.11%	8	19
72	Cooper	41.48%	219	528
73	Kuzma	40.54%	15	37
74	Lesovsky	40.00%	6	15
74	Penske	40.00%	2	5
76	Lola	39.71%	27	68
77	Eifelland	37.50%	3	8
77	Trojan	37.50%	3	8
79	Ferrari	35.98%	245	681
80	Mercedes	35.90%	14	39
81	Alfa Romeo	33.33%	16	48
	Stevens	33.33%	3	9
	Bellasi	33.33%	2	6
	Gilby	33.33%	2	6
	Trevis	33.33%	2	6
	Fittipaldi	33.33%	1	3
87	McLaren	33.07%	84	254
88	Tyrrell	31.15%	38	122
89	Matra	30.77%	36	117
90	Epperly	29.41%	5	17
91	Phillips	28.57%	2	7
92	OSCA	27.27%	3	11
93	Amon	25.00%	1	4
94	Porsche	20.00%	15	75
94	Parnelli	20.00%	1	5

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