Porsche Carrera 4 and Targa 4 turboPorsche’s new 3.0-litre bi-turbo engine range has now been extended to the all-wheel drive Carrera 4 and Targa 4, with prices starting from £81,398.

Producing 370hp in base guise and 420hp as the Carrera 4S and Targa 4S, the 20hp power boost over today’s 3.4-litre and 3.8-litre cars is combined with a drop in fuel consumption of up to 12%.

2016 Porsche Carrera arrives – and it’s turbocharged

That equates to combined economy of up to 36mpg.

The new engine doesn’t come for free though: the new price of the base Carrera 4 represents just under a 4% increase.

Buyers shouldn’t mind too much though – for the first time, all-wheel drive 911 Carreras now accelerate from 0-62mph more quickly than the rear-wheel drive cars.

They’re much quicker than the non-turbo cars too – the Carrera 4 with PDK and Sport Chrono is 0.4 seconds faster to 62mph and the S is 0.3 seconds faster: it does the benchmark time in just 3.8 seconds.

Porsche Carrera 4 and Targa 4 turbo

Porsche’s also given the new all-wheel drive a small extra visual identifier over the rear-drive cars: the light strip between the rear lights has a new 3D design, further enhancing the 44mm-wider rear wings.

As with other revised turbo 911s, there are headlights with four-point daytime running lights, recess-free doorhandles and new rear lights. The louvres on the rear lid are new too.

Inside, the PCM infotainment system has been improved and is standard on all, incorporating new features such as multi-touch.

Porsche says around one in three 911 buyers go all-wheel drive so the faster new 4 models will be popular in dealers: they’re available to order there now, with deliveries starting in early 2016. Perfect to still catch the worst of the wintry weather.