Showing posts with label Diesel. Show all posts
Showing posts with label Diesel. Show all posts

Sunday, September 20, 2009

Volkswagen's L1 Diesel-Electric Hybrid Concept Returns 170mpg!

Volkswagen's L1 Diesel-Electric Hybrid Concept Returns 170mpg!


The Frankfurt Motor Show marked the world debut of the new Volkswagen L1 Concept, a cigar-shaped diesel-electric hybrid that draws inspiration from Wolfsburg's original 1-litre concept car that was unveiled back in April 2002. Despite its name, the L1 actually burns a little over 1 lt at 1,38 liter of diesel for every 100 kilometers or about 170mpg US / 204.7mpg UK, while emitting just 39 g/km of CO2.

It may look weird, but the L1 is extremely aerodynamic featuring a co-efficient of drag figure of just 0.195 while the use of aluminium and carbon fibre materials in its construction results to a kerb weight of only 380kg or 830 pounds.

Measuring 3,813 mm in length, the L1 is about as long as a Polo, however at just 1,143 mm in height, it's as low as a Lamborghini Murcielago while its width, at just 1,200 mm, is narrower than any conventional car in the market today.

The concept model can seat two passengers in tandem, with the driver of course sitting up front. Both occupants enter the car through a side-hinging, electrically operated canopy.

Power is provided from a 0.8-liter diesel engine derived from the 1.6-litre TDI unit found in the new Golf BlueMotion and a 14-horsepower electric motor that engages either to take over from the diesel for short distances or to offer extra grunt when additional acceleration is required.

Volkswagen says that the L1 accelerates to 100km/h (62 mph) from rest in 14.3 seconds before reaching a maximum speed of 160km/h or 99 mph. Even though the L1 has a small 10-litre fuel tank, thanks to its extremely low fuel consumption, the driver can cover a distance (in theory always) of 725 kilometers or 450 miles between stops.

VW 1-Liter Concept - 2002






VW L1 Concept - 2009

Wednesday, September 16, 2009

Frankfurt Show Galleries: BMW Vision EfficientDynamics Concept

Frankfurt Show Galleries: BMW Vision EfficientDynamics Concept


The futuristic-looking Vision EfficientDynamics concept is the centerpiece of BMW's stand at the 2009 IAA show in Frankfurt. While not planned for production, the plug-in diesel-electric sports car is a showcase for the Bavarian firm's hybrid technology, lightweight body construction and numerous innovations. The concept with the gullwing doors is powered by a 1.5-liter, three-cylinder turbodiesel engine and two electric motors generating a combined output of up to 356-horsepower and 800Nm or 590 lb-ft of peak torque.

That's good enough to launch the car from rest to 100km/h (62mph) in 4.8 seconds and on to an electronically governed top speed of 250km/h or 155mph.

BMW says that the Vision EfficientDynamics returns a combined fuel consumption of 3.76 lt/100 km which is equal to 62.6 mpg US and that the car can run for about 50km (31 miles) in pure electric mode. Electric energy is stored in lithium-ion battery pack that can be fully recharged in 2.5 hours through a standard 220 V power outlet.