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The maximum speed of a 1971 Fiat 127 4 cylinder 44 horsepower car is 87 miles per hour.
The maximum speed of the 1962 Citroen DS 4 cylinder 83 horsepower is 93 mph.
The maximum speed of a 1969 Fiat 130, 6 cylinder, 140 horsepower sedan is 112 miles per hour.
The maximum speed of the 1975 Peugeot 504, 6 cylinder, 136 horsepower, coupe is 104 miles per hour.
Horsepower has NO direct relationship to speed.
The maximum speed of the 1973 Fiat 128 wagon with a 4-cylinder, 55 HP engine is 112 MPH. This engine size could be tweaked some to increase the horsepower and overall speed performance to gain up to 10 MPH more.
The top speed of a 1973 Subaru 1400 dl wagon with a 4 cylinder engine, making 61 horsepower is about 90 miles an hour.
The Nova of 1964 offered a 283-cubic-inch 195-horsepower engine and a torque of 285 ft.-lb. There were other engine options for the Nova including a 153 cubic inch 4 cylinder developing 90 horsepower, and a 195-cubic-inch V6 developing 120 horsepower. A 230-cubic-inch I6 with 155 horsepower was also available as well as the most powerful engine a 283-cubic-inch 195-horsepower V8 with a torque of 295 ft.-lb. The 4 cylinder had a top speed of 95, I6 had a top speed of 103, and the V8 topped out at 113. The 327 was not available in the Nova in 1964.
The 2006 Saturn Ion sedan with the 2.2 liter, 4-cylinder engine and 5-speed manual transmission has 140 horsepower at 5,600 rpm. It uses regular unleaded gas and has a 13 gallon fuel tank.
A 106-horsepower 4-cylinder engine powered the CX, DX, and LX, and could be accompanied by either a 5-speed manual or 4-speed automatic transmission. The HX coupe's engine makes 115 horsepower, driving either a 5-speed or the innovative new CVT (continuously variable) automatic transmission. It operates somewhat like an electrical dimmer, in contrast to a 3-way light switch. EX Civics hold a 127-horsepower engine, with either manual or automatic shift.
I've gotten my 4 cylinder engine up to 120mph. The engine does not have enough horsepower to go any faster but the transmission can still keep going.
None. Speed and horsepower measure different things.