Rolls-Royce Phantom vs Wallace Environmental Wetl 500
The Phantom costs less to run, by the official figures: about $420 a year less in New Zealand, $350 in Australia, £250 in the UK and $320 in the US.

Side by side
Specs are for each car's newest version. The better figure is in green.
A typical year's fuel
- New Zealand
- $5,433 (better)
- $5,850
- Australia
- $4,502 (better)
- $4,847
- United Kingdom
- £3,301 (better)
- £3,554
- United States
- $4,197 (better)
- $4,520
Official figures
- Uses
- 16.8 L/100km (better)
- 18.1 L/100km
- UK
- 17 mpg (better)
- 16 mpg
- US
- 14 mpg (better)
- 13 mpg
- On a full tank
- 536 km
- –
Space
- Seats
- 5
- –
- Boot
- 548 L
- –
- Length
- 5,762 mm
- –
- Weight
- 2,560 kg
- –
Engine
- Engine
- 6.75 L V12 twin-turbo petrol
- –
- Power
- 420 kW
- –
- Torque
- 900 Nm
- –
- Gearbox
- 8-speed automatic
- –
- Drive
- RWD
- –
A typical year: New Zealand 11,000 km (Ministry of Transport's average for a light vehicle); Australia 11,100 km (ABS Survey of Motor Vehicle Use average); United Kingdom 11,265 km (DfT National Travel Survey average of about 7,000 miles); United States 21,726 km (FHWA average of about 13,500 miles). Real costs depend on how and where you drive. Work out a particular trip.
Phantom or Wetl 500?
Which is cheaper to run, the Rolls-Royce Phantom or the Wallace Environmental Wetl 500?
The Rolls-Royce Phantom: about $420 a year less in New Zealand, $350 in Australia, £250 in the UK and $320 in the US than the Wallace Environmental Wetl 500 at today's average prices and a typical year's driving.
Which uses less fuel, the Rolls-Royce Phantom or the Wallace Environmental Wetl 500?
The Rolls-Royce Phantom, at 16.8 L/100km (17 mpg UK, 14 mpg US) to the Wallace Environmental Wetl 500's 18.1 L/100km (16 mpg UK, 13 mpg US), by their latest official figures.
Each on its own
Other comparisons
- Rolls-Royce Phantom vs Maserati Quattroporte
- Rolls-Royce Phantom vs Dodge Charger
- Rolls-Royce Phantom vs Chrysler 300
- Rolls-Royce Phantom vs Lexus Is
- Wallace Environmental Wetl 500 vs Porsche 928
- Wallace Environmental Wetl 500 vs Rolls-Royce Silver Seraph
- Wallace Environmental Wetl 500 vs Ferrari LaFerrari
- Wallace Environmental Wetl 500 vs Dodge D100
What will the drive cost?
Roadtrip works out the fuel or charging cost of any drive for your exact car, finds the cheapest stations on the way, and splits it between everyone in the car.
Rated 4.7 by drivers · 700,000 downloads
