BMW 340I vs Subaru Legacy

The 340I costs less to run, by the official figures: about $140 a year less in the US.

BMW 340ISubaru Legacy

Side by side

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

BMW 340ISubaru Legacy

A typical year's fuel

United States
$2,124 (better)
$2,261
New Zealand
$2,749 (better)
$2,927
Australia
$2,278 (better)
$2,425
United Kingdom
£1,670 (better)
£1,778

Official figures

Uses
28 mpg (better)
26 mpg
Also
8.5 L/100km (better)
9.1 L/100km
On a full tank
417 miles
481 miles (better)

Space

Seats
5
5
Boot
480 L (better)
425 L
Length
4,709 mm
4,841 mm
Weight
1,595 kg
1,587 kg

Engine

Engine
3.0 L 6-cylinder turbo petrol
2.5 L flat-4 petrol
Power
240 kW (better)
134 kW
Torque
450 Nm (better)
239 Nm
Gearbox
8-speed automatic
CVT
Drive
RWD
AWD

Safety

ANCAP
–
★★★★★
Euro NCAP
★★★★★
–
Airbags
–
7

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.

340I or Legacy?

Which is cheaper to run, the BMW 340I or the Subaru Legacy?

The BMW 340I: about $140 a year less in the US than the Subaru Legacy at today's average prices and a typical year's driving.

Which uses less fuel, the BMW 340I or the Subaru Legacy?

The BMW 340I, at 8.5 L/100km (33 mpg UK, 28 mpg US) to the Subaru Legacy's 9.1 L/100km (31 mpg UK, 26 mpg US), by their latest official figures.

Which has the bigger boot, the BMW 340I or the Subaru Legacy?

The BMW 340I, at 480 L to the Subaru Legacy's 425 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.

Rated 4.7 by drivers · 700,000 downloads

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