What is it?
It's the second generation of the VW Passat Bluemotion estate, which promises to be cleaner and more frugal than its predecessor, as well as addressing some of its shortcomings.
Most notably, gone is the noisy 1.9-litre pumpe duse diesel engine, replaced by a 109bhp 2.0-litre common-rail diesel unit. It has the same torque figure (184 lb ft) as the last model and is linked to a five-speed gearbox.
The engine has been recalibrated with a lower idle rate and fitted with a switchable stops-start system to cut emissions and boost economy.
Other modifications made in the name of economy include longer gear ratios in third, fourth and fifth gears, a 15mm lower ride height and a more aerodynamic front profile.
The net result is claimed average fuel economy of 57.6mpg and CO2 emissions of 129g/km – all from a car with the capacity to carry 1641 litres of luggage in the boot (albeit with a consummate drop in economy thanks to the extra weight).
What’s it like?
The new engine transforms the car, providing a major step forward in both refinement and drive. It’s quieter than the old unit, and delivers only a light thrum that is only going to irritate the most noise conscious of drivers.