Buick Regal vs Mercedes-Benz CLS-Class

The CLS-Class costs less to run, by the official figures: about $130 a year less in New Zealand, $100 in Australia, £80 in the UK and $100 in the US.

Buick RegalMercedes-Benz CLS-Class

Side by side

Specs are for each car's newest version. The better figure is in green.

Buick RegalMercedes-Benz CLS-Class

A typical year's fuel

New Zealand
$3,169
$3,043 (better)
Australia
$2,626
$2,521 (better)
United Kingdom
£1,925
£1,849 (better)
United States
$2,449
$2,351 (better)

Official figures

Uses
9.8 L/100km
9.4 L/100km (better)
UK
29 mpg
30 mpg (better)
US
24 mpg
25 mpg (better)
On a full tank
714 km (better)
701 km

Space

Seats
5
5
Boot
404 L
450 L (better)
Length
4,831 mm
4,994 mm
Weight
1,649 kg
1,935 kg

Engine

Engine
2.4 L 4-cylinder petrol
3.0 L 6-cylinder turbo petrol mild hybrid
Power
164 kW
270 kW (better)
Torque
350 Nm
500 Nm (better)
Gearbox
6-speed automatic
9-speed automatic
Drive
FWD
AWD

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.

Regal or CLS-Class?

Which is cheaper to run, the Buick Regal or the Mercedes-Benz CLS-Class?

The Mercedes-Benz CLS-Class: about $130 a year less in New Zealand, $100 in Australia, £80 in the UK and $100 in the US than the Buick Regal at today's average prices and a typical year's driving.

Which uses less fuel, the Buick Regal or the Mercedes-Benz CLS-Class?

The Mercedes-Benz CLS-Class, at 9.4 L/100km (30 mpg UK, 25 mpg US) to the Buick Regal's 9.8 L/100km (29 mpg UK, 24 mpg US), by their latest official figures.

Which has the bigger boot, the Buick Regal or the Mercedes-Benz CLS-Class?

The Mercedes-Benz CLS-Class, at 450 L to the Buick Regal's 404 L, for their newest versions.

Each on its own

Other comparisons

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.

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The Roadtrip app showing a drive into London that costs £4.81 each, with fuel prices along the way