JohnsonsEvilTwin wrote:Some BMW 1 series test mules with current tech are doing 85mpg with one critical change. Carbon Fibre in place of steel.
The new Volkswagen XL1 attains a CO2 emissions value of 24 g/km, thanks to a combination of lightweight construction (monocoque and add-on parts made of carbon fibre), very low aerodynamic drag (Cd 0.186) and a plug-in hybrid system - consisting of a two cylinder TDI engine (35 kW / 48 PS), E-motor (20 kW / 27 PS), 7-speed dual-clutch transmission (DSG) and lithium-ion battery. The results: with fuel consumption of 0.9 l/100 km, the new Volkswagen XL1 only emits 24 g/km CO2. Since it is designed as a plug-in hybrid, the XL1 prototype can also be driven for up to 35 kilometres in pure electric mode, i.e. with zero emissions at point of use. The battery can be charged from a conventional household electric outlet. Naturally, battery regeneration is also employed to recover energy while slowing down and store as much of it as possible in the battery for re-use. In this case, the electric motor acts as an electric generator.
The drag coefficient (Cd) is 0.159...
...The engine is a one-cylinder 299 cc (18 cu in) diesel producing just 6.3 kW (8.4 hp). It drives through a six-speed transmission that combines stick-shift mechanics, weight, and drive efficiency with automatic convenience and efficiency controls.
The Volkswagen up! Lite concept car has a hybrid powertrain with one 0.8 litres (48.8 cu in) two-cylinder Turbocharged Direct Injection (TDI) diesel engine and one 10 kilowatts (14 PS; 13 bhp) electric motor, and using a seven-speed dry dual-clutch Direct-Shift Gearbox (DSG).
It weighs 695 kilograms (1,532 lb), has a top-speed of 160 kilometres per hour (99 mph), and CO2 emission not more than 65 g/km.
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