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Other organizations generally considered reputable, such as the American Automobile Association and Consumer Reports have performed studies with the same result. [ 3 ] [ 4 ] One reason that ineffective fuel-saving gadgets are popular is the difficulty of accurately measuring small changes in the fuel economy of a vehicle.
When a small car under heavy load runs at half speed, the engine automatically switches to the two-cycle mode, which is then more efficient. The research on this showed a 27% reduction in fuel consumption. [8] [9] The M4+2 engine has a four-stroke piston and a two-stroke piston.
The car was purchased with an original 104 horsepower, 2000cc four cylinder motor. Following a number of engine iterations, the car is now powered by a 572ci Twin Turbo Chevrolet V8. Specs as follows: Dart big M block Lunati pro series 4340 forged crank Oliver billet steel rods Diamond turbo pistons Speed pro "Hellfire" rings Aviaid 4 stage dry ...
Internal combustion piston-engined production car – Gordon Murray T.50 – 12,100 rpm [62] Internal combustion Wankel rotary-engined production car – Mazda RX-8 – 9,000 rpm Electric production vehicle – Zeekr 001 FR – 20,620 rpm [ 63 ]
For example, a piston in an automobile engine which has a stroke of 90 mm will have a mean speed at 3000 rpm of 2 * (90 / 1000) * 3000 / 60 = 9 m/s. The 5.2-liter V10 that debuted in the 2009 Audi R8 has the highest mean piston speed for any production car (26.9 m/s) thanks to its 92.8 mm stroke and 8700-rpm redline. [1]
Driving.co.uk ranked it #14 on their list of the 23 ugliest cars ever made, [136] Auto Express ranked it #5 on their list of the ten ugliest cars ever made, [137] and Drive.com.au included in their article on the worst cars of the 20th century, calling it "one of the silliest-looking cars of the century".
HuffPost Data Visualization, analysis, interactive maps and real-time graphics. Browse, copy and fork our open-source software.; Remix thousands of aggregated polling results.
The first application of the Volkswagen WR12 was the 2001 Volkswagen W12, a mid-engined concept car which set the 24‑hour world endurance record in 2001 with a distance of 7,085.7 kilometres (4,402.8 mi) and an average speed of 295 km/h (183 mph). The first production car to use the WR12 engine was the 2001 Audi A8 (D2). [4]
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