According to the car's manufacturer's data, the Karl needs 4,9 l of LPG per 100 km of highway driving, 7,1 l/100 km in the city and 5,7 l/100 km on average. Just for comparion, when running on petrol it requires on average 4,6 l/100 km, but don't be fooled by the sheer figures since autogas is usually by approx. 50 percent cheaper than its conventional counterpart. Given the fuel economy figures and current fuel prices, the only kind of motor vehicle cheaper to run than a Karl LPGTEC would probably be... a moped. As for CO2 emissions, the autogas-powered pocket-sized Opel spews out 93 g/km, which is less than the special ECO version running on petrol, which emits 99 g/km.
The Kadett A (above) finally appeared in 1962, and was a classic GM/Opel effort: highly pragmatic, conventional in every respect, reasonably stylish for its time, and designed to deliver a good bang for the buck. In just about every way possible, it was the antithesis of the VW: front-engine rwd, a rather tinny but roomy body, highly tossable but with a primitive suspension and ride, a very roomy trunk, and excellent visibility as well as economy. Oh, and a proper heater even! Its little 987 cc OHV four made 40 net/46 gross hp, six more than the VW 1200. Its trim fighting weight of 1475 lbs (670 kg), some two hundred pounds less than the VW, showed in both its acceleration and body integrity.
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