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Checker Marathon A-12  

1960, USA

engines/performance

engines:
years cyl./valv. compr. displacement

power

  specific fuel torque  
74-75: i6/12V 8.25:1 4093cc.(250ci)

100net-hp

@3600rpm

24.4 hp/l 1bbl 175lb-ft. (237Nm)

@1800rpm

76: i6/12V 8.2:1 4093cc.(250ci)

105net-hp

@3800rpm

25.7 hp/l 1bbl 185lb-ft. (251Nm)

@1200rpm

77-79: i6/12V 8.3:1 4093cc.(250ci)

110net-hp

@3800rpm

26.9 hp/l 1bbl 195lb-ft. (265Nm)

@1600rpm

80: V6/12V 8.0:1 3753cc.(229ci)

118net-hp

@4000rpm

31.4 hp/l 2bbl 175lb-ft. (237Nm)

@2000rpm

81-82: V6/12V 8.6:1 3753cc.(229ci)

113net-hp

@4200rpm

30.1 hp/l 2bbl 173lb-ft. (235Nm)

@2000rpm

80: V8/16V 8.4:1 4375cc.(267ci)

122net-hp

@4600rpm

27.9 hp/l 2bbl 215lb-ft. (291Nm)

@2000rpm

81-82: V8/16V 8.3:1 4375cc.(267ci)

118net-hp

@4000rpm

27.0 hp/l 2bbl 204lb-ft. (276Nm)

@2400rpm

77-79: V8/16V 8.4:1 5001cc.(305ci)

145net-hp

@3800rpm

29.0 hp/l 2bbl 245lb-ft. (332Nm)

@2400rpm

80: V8/16V 8.5:1 5001cc.(305ci)

158net-hp

@4000rpm

31.6 hp/l 2bbl 240lb-ft. (325Nm)

@1600rpm

81-82: V8/16V 8.6:1 5001cc.(305ci)

153net-hp

@3800rpm

30.6 hp/l 4bbl 245lb-ft. (332Nm)

@2400rpm

74-76: V8/16V 8.5:1 5733cc.(350ci)

145net-hp

@4000rpm

25.3 hp/l 2bbl 250lb-ft. (339Nm)

@2200rpm

77: V8/16V 8.2:1 5733cc.(350ci)

170net-hp

@3800rpm

29.7 hp/l 4bbl 270lb-ft. (366Nm)

@2400rpm

78-79: V8/16V 8.2:1 5733cc.(350ci)

160net-hp

@3800rpm

27.9 hp/l 4bbl 260lb-ft. (352Nm)

@2400rpm

81-82: V8/16V 22.5:1 5733cc.(350ci)

107net-hp

@3200rpm

18.7 hp/l diesel 204lb-ft. (276Nm)

@1600rpm

performance:
engine topspeed 0-50mph 0-62mph 0-100mph 0-124mph

1/4mile

mileage (US-gallon)
4.1l100hp: 150kph/93mph ?s ?s ?s ?s

?s@?mph/?kph

? l/100km? mpg
4.1l105hp: 150kph/93mph ?s ?s ?s ?s

?s@?mph/?kph

? l/100km? mpg
4.1l110hp: 150kph/93mph ?s 17.0s ?s ?s

?s@?mph/?kph

? l/100km? mpg
3.8l118hp: 160kph/99mph ?s 16.0s ?s ?s

?s@?mph/?kph

? l/100km? mpg
3.8l113hp: 155kph/96mph ?s 16.5s ?s ?s

?s@?mph/?kph

? l/100km? mpg
4.4l122hp: 165kph/103mph ?s 15.5s ?s ?s

?s@?mph/?kph

? l/100km? mpg
4.4l118hp: 160kph/99mph ?s 16.5s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.0l145hp: 160kph/99mph ?s 14.0s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.0l158hp: 175kph/109mph ?s 12.0s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.0l153hp: 170kph/106mph ?s 12.5s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.7l145hp: 165kph/103mph ?s ?s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.7l170hp: 175kph/109mph ?s 12.0s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.7l160hp: 175kph/109mph ?s 12.0s ?s ?s

?s@?mph/?kph

? l/100km? mpg
5.7l107hp: 140kph/87mph ?s 21.0s ?s ?s

?s@?mph/?kph

? l/100km? mpg

tyres/transmission

tyres front/rear: G78-15
transmission/drive wheel: 3-speed automatic/RWD

dimensions/weight

length x width x height: 5200 x 1930 x 1595 mm (204.7 x 76.0 x 62.8 in)
wheelbase - tread f/r: 3048 mm - 1640/1610 mm (120.0 in - 64.6/63.4 in)
some calculations: base aera: 10.04 m² (108.0 sq.ft.) - frontal aera: ~2.54 m² (~27.3 sq.ft.) - LxWxH: 16.01 m³ (565.4 cu.ft.)
aerodynamics: coefficient of drag (cd): ? - drag area: ? m² / ? sq.ft.
weight: 1740 - 1888 kg (3836 - 4162 lb)
power/weight-ratio: 11.1 - 17.4 kg/hp (24.5 - 38.4 lb/hp) 57 - 90 hp/ton

price/production

base-price: 4,716 - 4,825 $ (1974) 
production: ?

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Pictures taken at the "Street Mag Show 2009" in Hanover, Germany
 
  Checker Marathon A-12 1960   Checker Marathon A-12 1960   Checker Marathon A-12 1960  
             
  Checker Marathon A-12 1960   Checker Marathon A-12 1960   Checker Marathon A-12 1960  
             
  Checker Marathon A-12 1960          
             

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