More powerful 2014 Porsche Panamera Diesel launched before Frankfurt debut image

Set to make its official debut later next week during the IAA Frankfurt Motor Show, the Panamera facelift has been revealed online, alongside its more potent 300 bhp diesel engine.

The four-door saloon also receives the same subtle exterior and interior styling changes as other variants of the four-year-old Panamera and is due to go on sale from January 2014 onwards with a price tag of 85, 300 euros, including VAT, in Germany.

Of course, as we already know what the refreshed Panamera brings to the table in terms of design, equipment and other goodies, the biggest change here is the new engine, that bumps the power from 250 bhp to 300 bhp, a good 20% increase in the output.

With a six-cylinder V-engine with a displacement of three liters, the acceleration time has been reduced by eight-tenths of a second, meaning that the new model goes from 0 to 100 km/h in 6 seconds, while the top speed has increased to 259 km/h compared to the 244 km/h achieved by the previous model. The new engine offers an NEDC fuel consumption of 6.4 litres/100 km, which is equivalent to 169 CO2/km.

There are also a number of subtle dynamic improvements: the Panamera Diesel now features the controlled rear-axle differential lock with Porsche Torque Vectoring Plus (PTV+) as standard for the first time – to date, this feature has been reserved for the petrol engine Gran Turismo models; and also the transmission and chassis have been retuned.

In addition to the increased power output of 300 bhp (221 kW) at 4000 rpm, the rated torque has also been increased by 100 Nm to 650 Nm at engine speeds of between 1750 rpm and 2500 rpm – this helps the Panamera up the ante on the towing capacity as well, to 2600 kg.