Lexus RX450H vs Mercedes-Benz B-Class

The B-Class costs less to run, by the official figures: about $10 a year less in the US.

Side by side

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

Lexus RX450HMercedes-Benz B-Class

A typical year's fuel

United States
$1,432
$1,424 (better)
New Zealand
$1,853
$1,843 (better)
Australia
$1,537
$1,529 (better)
United Kingdom
£1,126
£1,120 (better)

Official figures

Uses
41 mpg
41 mpg (better)
Also
5.7 L/100km
5.7 L/100km (better)

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.

RX450H or B-Class?

Which is cheaper to run, the Lexus RX450H or the Mercedes-Benz B-Class?

The Mercedes-Benz B-Class: about $10 a year less in the US than the Lexus RX450H at today's average prices and a typical year's driving.

Which uses less fuel, the Lexus RX450H or the Mercedes-Benz B-Class?

The Mercedes-Benz B-Class, at 5.7 L/100km (50 mpg UK, 41 mpg US) to the Lexus RX450H's 5.7 L/100km (49 mpg UK, 41 mpg US), by their latest official figures.

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