In-depth Reviews

Rolls-Royce Phantom saloon - MPG, running costs & CO2

The magnificent petrol V12 is a lot of things, but economical isn’t one of them

Carbuyer Rating

3.6 out of 5

MPG, running costs & CO2 Rating

1.5 out of 5

It’s fair to say the huge turbocharged V12 petrol engine found in the Phantom has been designed to be quiet, smooth and mightily powerful above being light on fuel. Your chauffeur will need to whisk the Phantom off to the pumps fairly often then, but at least the Rolls won’t cost any more to tax than an upmarket SUV.

Rolls-Royce Phantom MPG & CO2

The 6.75-litre engine will purr its way to 20.3mpg and emits 318g/km of CO2. Needless to say, these are figures befitting a supercar and around triple those of an average family car. Still, they're comparable with models like the Bentley Mulsanne, so it’s in good company.

Yet, because of the way the current road-tax system works, the Phantom will cost just £140 a year to tax, with the additional surcharge for vehicles costing over £40,000 increasing the payments to £450 in years two to six. That’s the same as you’ll pay for a mid-range BMW 5 Series saloon.

Insurance groups

The Rolls-Royce Phantom is said to be the most complicated vehicle the British manufacturer, or its parent the BMW Group, has ever produced. For that reason alone we’d be amazed if it doesn’t sit in the very top group 50 for insurance when it’s confirmed.


Every new Rolls-Royce comes with a four-year/unlimited-mileage 'ownership package', comprising servicing, repairs, maintenance and roadside assistance, with only tyres and replacement glass excluded.


As part of the four-year service described above, all servicing is included. Sensors fitted around the car monitor components like the engine oil, brake pads and filters, automatically transmitting data back to the dealership. When the car needs a service, the work can be tailored to its needs automatically.

Most Popular

Best small SUVs
Small SUVs
31 Dec 2020

Best small SUVs

Best 4x4s and SUVs
Peugeot 3008 SUV rear 3/4 tracking
Family SUVs
14 Jan 2021

Best 4x4s and SUVs

Best first cars
City cars
11 Jan 2021

Best first cars