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The C111-III was powered by a 230 horsepower (170 kW) @ 4,500rpm straight-5 OM617 turbodiesel which broke nine diesel and gas speed records.
With more aerodynamic bodywork that gave it an air drag coefficient of .191 the C111 eventually reached 200 mph (322 km/h) at Narḍ in 1978, and averaged 14.7mpg@ 316 km/h (195.4 mph) over a 12 hour cruise.
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