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The 3.0L engine with 300 hp: the more attractive Porsche Panamera Diesel A new engine, more power and improved aerodynamic performance

With its completely new 300 hp (221 kW) engine and dynamic performance package, Porsche has made the Panamera Diesel even more attractive just in time for this year's International Motor Show (IAA).

The luxury grand tourer has once again been fitted with a six-cylinder V-engine with a displacement of three litres, but power output has been increased by 50 hp (37 kW) – a significant 20 per cent increase in performance compared to its predecessor.

Torque has also been substantially increased, from 550 Nm to 650 Nm between 1,750 rpm and 2,500 rpm, providing even greater acceleration at lower speeds

As a result, acceleration time is reduced by eight-tenths of a second, meaning that the new model goes from 0 to 100 km/h in 6.0 seconds, while the top speed has increased to 259 km/h compared to the 244 km/h achieved by the previous model.

In addition to the improved power output, dynamic performance has also been optimised: For instance, 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 Panamera models. The transmission and chassis have also been retuned.

Around 8,500 Panamera Diesel vehicles have been delivered so far, and the model accounts for a share of around 15 per cent of the complete Panamera model range.
The only aspects that still remain of the previous Panamera Diesel’s V6 engine are the basic engine dimensions. The moving parts in particular, such as the crankshaft drive and pistons, have been completely re-designed and dimensioned with the aim of increasing the power output. Porsche has combined its new engine with a water-cooled turbocharger for the first time, too. The new turbine provides a greater air flow as well as a higher boost pressure of 3.0 bar (formerly 2.5 bar).

This power needs to be reliably converted into traction, which is where PTV+ comes in: The system comprises an electronically controlled, fully variable rear-axle differential lock and targeted, individual brake interventions at the rear wheels. At low to moderate speeds, the PTV Plus improves agility and steering precision; at high speeds and when accelerating out of bends, it delivers greater driving stability.

The more powerful characteristics of the turbo engine also offered an opportunity to re-tune the transmission. In order to reduce fuel consumption and improve comfort at higher speeds in particular, the gear ratio is longer for the rear axle, meaning the Panamera Diesel uses a lower engine speed to achieve the required vehicle speed.

The Gran Turismo with the new engine offers an NEDC fuel consumption of 6.4 litres/100 km, which is equivalent to 169 CO2/km.

In addition, gears one to four of the eight-speed Tiptronic S transmission have been designed with a shorter gear ratio, giving the Gran Turismo an impressively powerful acceleration and sprint capability.

This improved agility is also evident in the running-gear set-up: The anti-roll bars on the front and rear axle are slightly more rigid, giving the Panamera Diesel a sportier feel than its predecessor.

The Panamera Diesel with the new engine replaces the current 250 hp (184 kW) variant, with Australian deliveries commencing in March 2014.  The new Panamera Diesel will be priced from $204,600 – up from its predecessor showroom price of $196,700.

3/9/2013