Called the Twin Up, the concept boasts the XL1’s plug-in diesel-hybrid set-up. That gives it a two-cylinder 0.8 litre diesel engine and electric motor producing 35kW each, and matched to a seven-speed DSG automatic transmission.
VW says the Twin Up concept can lay claim to being Europe’s most fuel-efficient four-seater car with a combined figure of just 1.1 l/100km or an incredible 257 MPG in the ‘old’ language.
Fuel economy is aided by low rolling-resistance 15-inch tyres and a weight of 1208kg.
This compares to the XL1’s slightly more frugal 0.9 l/100km (314 MPG), but the XL1 only has two seats.
The Twin Up features an 8.6 kWh lithium-ion battery which along with the standard 12-volt battery and 33 litre fuel tank is stored behind the rear seats for better weight distribution.
In electric-only mode, the Twin Up can travel up to 50km, compared to the 150km range of the all-electric E-Up.
With the diesel engine assisting, zero to 100km/h is reached in 15.7 seconds, on its way to a top speed of 140km/h.
Elsewhere, the Twin Up concept features unique ‘sparkling white’ paint and a leather-fabric interior along with digital instrumentation and a smart new “digital” climate control system.
The original concept for the XL1 was seen as an unlikely starter as a production model, however it arrived in European showrooms earlier this year with 50 examples being built.
No official word yet from Volkswagen on whether the Twin Up concept will also spawn a production version.
As the idea was first floated earlier this year, we think it stands a pretty good chance.