Parkers overall rating: 4.4 out of 5 4.4

Miles per pound (mpp) Miles per pound (mpp)

Petrol engines 4.6 - 5.9 mpp
Plug-in hybrid petrol engines 15.9 - 30.2 mpp
Low figures relate to the least economical version; high to the most economical. Based on WLTP combined fuel economy for versions of this car made since September 2017 only, and typical current fuel or electricity costs.
Based on "Weighted" mpg; figures depend on the proportion of miles driven in pure electric mode and may vary widely

Fuel economy

Petrol engines 21.4 - 27.7 mpg
Plug-in hybrid petrol engines 74.3 - 141.2 mpg
  • E-Hybrid’s official claim is 113mpg; unlikely in real world
  • Performance prioritised over penny-pinching here
  • Diesel is cheapest to run for regular motorway driving

Given that the Porsche Panamera is a high-performance range of luxury cars, running costs aren’t going to be supermini-rivalling, but in the real-world they’re not quite as exorbitant as you might fear.

Officially, the best in the range is the 4 E-Hybrid with an official claim of 113.0mpg and CO2 emissions of 56g/km. It’s highly unlikely you’re realise such heady levels of fuel efficiency, but with between 15 and 31 miles of electric-only range, it should prove cost-effective to run if you drive predominantly in cities.

Porsche Panamera Hybrid badge, side

Of more benefit in longer motorway slogs is the 4S Diesel, which claims an average 42mpg with 178-176g/km CO2, and should be capable of over 30mpg in real-world driving. It will certainly go the furthest between stops at the filling station.

Bringing up the rear is the full-fat Turbo Executive: the extra weight of the long-wheelbase’s metalwork produces a claim nudging onto 30mpg with CO2 emissions between 215 and 217g/km of CO2.

Being a Porsche, servicing and parts such as tyres will inevitably be expensive, so don’t buy one convinced you’ll be able to run it on a shoestring.

If owning the Porsche Panamera with the lowest possible CO2 emissions is your primary goal then the 4 E-Hybrid is your default choice. Because it can be driven for up to 31 miles on electric power alone it’s possible to drive it as a zero-emissions vehicle on shorter runs.

Worst of the range is the Turbo Executive: fitted with the larger wheel option, CO2’s officially rated at 217g/km.

Is it reliable?

  • New platform to form basis of several prestige cars
  • Porsche reliability not spotless

It's too early to give an estimate of the second-generation Panamera's reliability, as it is a brand new model, based on a brand new platform, using brand new engines.

However, this platform has been developed (by Porsche) to form the basis of several luxury models including the new 2017 Audi A8 and 2017 Bentley Continental - so you can be assured that the company has done everything it possibly can to make it reliable right from the start. That's a lot of potentially influencial customers it's otherwise going to let down.

Porsches in general do not have an entirely spotless record of historic reliability, and this is a particularly complex car. It will pay to do plenty of research if you were to consider buying a used Panamera several years down the line...

Porsche Panamera 4S rear badge

Ongoing running costs

Road tax (12 months) £0 - £475
See tax rates for all versions
Insurance group 47 - 50
How much is it to insure?