Retirement Ratio

Finishing position:

Pos	Car Manufacturer	Retirement Ratio	Retirements	Entries
1	Ferguson	200.00%	2	1
2	Balsa	100.00%	1	1
	Bugatti	100.00%	1	1
	Derrington-Francis	100.00%	1	1
	EMW	100.00%	1	1
	Greifzu	100.00%	1	1
	Klenk	100.00%	1	1
	Kurtis Kraft	100.00%	1	1
	Milano	100.00%	1	1
	Nacke	100.00%	1	1
	Politoys	100.00%	1	1
	Shannon	100.00%	1	1
	Tec-Mec	100.00%	1	1
14	Williams	83.33%	5	6
15	ATS (Ita)	80.00%	8	10
15	Lancia	80.00%	8	10
17	Aston	75.00%	3	4
18	De Tomaso	72.22%	13	18
19	Simca-Gordini	68.97%	20	29
20	Eagle	68.57%	24	35
21	ERA	66.67%	8	12
	Scirocco	66.67%	6	9
	Alta	66.67%	4	6
	JBW	66.67%	4	6
25	Connaught	65.38%	34	52
26	Vanwall	65.15%	43	66
27	Tecno	64.29%	9	14
28	Gordini	61.39%	62	101
29	Veritas	61.11%	11	18
30	Scarab	60.00%	6	10
31	Honda	56.52%	26	46
32	AFM	55.56%	5	9
33	Aston Martin	54.55%	6	11
34	Shadow	53.42%	39	73
35	Hesketh	52.94%	9	17
36	HWM	52.08%	25	48
37	Maserati	50.99%	206	404
38	Iso Marlboro	50.88%	29	57
39	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
	Pearce	50.00%	1	2
45	Talbot-Lago	49.38%	40	81
46	BRM	47.96%	259	540
47	March	47.08%	121	257
48	Surtees	45.89%	67	146
49	Emeryson	42.86%	3	7
50	Lotus	42.40%	290	684
51	Brabham	42.27%	197	466
52	BRP	42.11%	8	19
52	Ensign	42.11%	8	19
54	Cooper	41.48%	219	528
55	Penske	40.00%	2	5
56	Lola	39.71%	27	68
57	Eifelland	37.50%	3	8
57	Trojan	37.50%	3	8
59	Mercedes	35.90%	14	39
60	Ferrari	35.88%	244	680
61	Alfa Romeo	33.33%	16	48
	Bellasi	33.33%	2	6
	Gilby	33.33%	2	6
	Fittipaldi	33.33%	1	3
65	McLaren	33.07%	84	254
66	Tyrrell	31.15%	38	122
67	Matra	30.77%	36	117
68	OSCA	27.27%	3	11
69	Amon	25.00%	1	4
70	Porsche	20.00%	15	75
70	Parnelli	20.00%	1	5

Finishing position: