Petrol · 2014–2023

BMW 420I

MPG, running costs and specs for the BMW 420I. By the official figures, the 2023 gets 31 mpg, about $1,899 a year in the US.

BMW 420I in white
MPG
31 mpg
2023 official · 7.6 L/100km
A year's gas
$1,899
at today's prices in the US
On a full tank
482 miles
59 L tank
Seats
5

What a 420I costs to run

At today's average gas prices, by its official fuel use, the US first.

CountryAverage price todayCost to driveA typical year
United States$4.35/gal petrol$14.07 per 100 miles$1,899
New Zealand$2.94/L petrol$22.34 per 100 km$2,458
Australia$2.42/L petrol$18.35 per 100 km$2,037
United Kingdom£1.74/L petrol£21.33 per 100 miles£1,493

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.

G22, 2020–2027

Specs for the 420i coupe. Other versions differ; the figures at the top are the most efficient version's.

About

Body
Coupe
Size class
Medium
Generation
G22
Built
2020-2027
Seats
4
Doors
2
Drive
RWD

Size and weight

Length
4,768 mm
Width
1,852 mm
Height
1,383 mm
Wheelbase
2,851 mm
Kerb weight
1,560 kg
Boot
440 L

Engine

Engine
2.0 L 4-cylinder turbo petrol
Engine size
1,998 cc
Cylinders
4
Aspiration
Turbo
Power
135 kW
Torque
300 Nm
Gearbox
8-speed automatic

Economy

Fuel use (combined)
6.4 L/100km
CO₂
145 g/km
Fuel tank
59 L
Minimum petrol
95 RON

Safety

Auto emergency braking
Yes

Features

Apple CarPlay
Yes
Android Auto
Yes

Official figures by year

From the US EPA, the UK's DfT and NZTA, newest first.

YearFuelUsesUKUSRange
2023Petrol7.6 L/100km37 mpg31 mpg—
2020Petrol6.2 L/100km46 mpg38 mpg—
2019Petrol6.3 L/100km45 mpg37 mpg—
2018Petrol6.3 L/100km45 mpg37 mpg—
2017Petrol6.3 L/100km45 mpg37 mpg—
2016Petrol6.2 L/100km45 mpg38 mpg—
2015Petrol6.2 L/100km46 mpg38 mpg—
2014Petrol6.1 L/100km46 mpg38 mpg—

BMW 420I questions

What MPG does the BMW 420I get?

The 2023 BMW 420I gets 31 mpg in US gallons by its official figures (7.6 L/100km). Each year's figures are listed below.

How much does a BMW 420I cost to run a year in the US?

About $1,899 a year at today's average gas price of $4.35/gal and a typical year's driving in the US.

How far does a BMW 420I go on a full tank?

About 482 miles (776 km) from its 59 L tank at its official fuel use.

How big is the BMW 420I's trunk?

440 L, for the 420i coupe.

Cars like the 420I

From other makes, closest in what they use.

More from BMW

Every BMW

What will a drive in your 420I 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