Frugal diesel hybrid powertrain from XL1 to be used in Up city car; it will be good for 95mpg

Volkswagen is putting the final touches to a super-economical version of the Up city car, which will be good for at least 95mpg.

Expected to be called the Up blue-e-motion, the model will be powered by a production version of the powertrain from the XL1 concept, company sources say.

Based on today’s four-cylinder, 1.6-litre VW Group diesel engine, the Up’s twin-cylinder, 800cc turbodiesel is expected to develop just 47bhp, but will be ‘assisted’ by a 26bhp electric motor. The engine’s block is made from aluminium and the bores are plasma coated. It also gets a sophisticated balancer shaft set-up to smooth out the inherently unbalanced two-cylinder layout. The engine and electric motor will be coupled to a seven-speed dual-clutch gearbox.

Unlike the XL1, however, the Up blue-e-motion will not be able to travel solely on battery power. That’s because the car’s battery pack will only be large enough to power the electric motor during standing starts or for brief periods of hard acceleration. Energy will be reclaimed during braking to help recharge the battery.

The Up is also likely to be equipped with the XL1’s new ‘pulse starting’ feature, which will make the car’s stop-start mode much more seamless. In pulse starting, the electric motor spins the idle engine up to the required speed for its restart, making it virtually undetectable by the driver.

When the XL1 is being powered purely by this hybrid diesel engine, it returns 141mpg on the EU test cycle. However, the Up will be at least 300kg heavier than the carbonfibre-bodied XL1 and will have more aerodynamic drag, due to its bigger cabin and much greater frontal area, which means fuel economy will be reduced by about a third when compared with the concept.

Hilton Holloway

See all the latest Chevrolet Cruze reviews, news and video

Join the debate

Comments
4

30 August 2016

I simply love this car. Its small and great on drive.

31 August 2016

It seems that this car has great future.

21 September 2016

Waiting for the new launching of Hilux Car.

22 September 2016

Four wheel cyclinder car are now cheap.

Add your comment

Log in or register to post comments

Find an Autocar car review

Driven this week

  • 2016 Audi A3 Sportback e-tron UK review
    First Drive
    29 September 2016
    First UK drive finds the facelifted A3 Sportback e-tron remains a first-rate plug-in hybrid that is packed with tech if a little short on driver appeal
  • Citroen C11.2 Puretech 82 Furio
    First Drive
    29 September 2016
    Citroën's city car gets a new sporty-looking trim level, adding visual adornments, but no premium for the 1.2-litre Puretech triple we're driving
  • Mercedes C350e Sport
    First Drive
    28 September 2016
    Petrol-electric C-Class is a surprisingly well-priced alternative to a diesel but not the greatest example of the new ‘PHEV’ breed
  • Car review
    23 September 2016
    Aston kicks off its ‘second century plan’ with an all-new turbo V12 grand tourer
  • Ford Ka+ 1.2 Ti-VCT 85
    First Drive
    22 September 2016
    A rounded, refined and well-sorted bargain supermini – once you’re used to the confusing role redefinition imposed on the once-cheeky Ka