Vehicle Data Hub

2005 BMW 645CI fuel economy

The EPA lists 6 versions of the 2005 BMW 645CI. Combined fuel economy ranges from 16 to 19 MPG; the most efficient version is rated 16 city / 24 highway.

At a glance

Combined
16 to 19 MPG depending on version
City and highway
16 and 24 most efficient version
Yearly fuel cost
$4,350 EPA estimate, most efficient version

Source: U.S. EPA fueleconomy.gov

Every version the EPA tested

VersionEngineDriveCityHighwayCombinedYearly fuel cost
645ci
Automatic (S6)
8-cyl 4.4L Rear-Wheel Drive 162419 MPG $4,350
645ci Convertible
Automatic (S6)
8-cyl 4.4L Rear-Wheel Drive 162419 MPG $4,350
645ci
Manual 6-spd
8-cyl 4.4L Rear-Wheel Drive 152318 MPG $4,550
645ci
Automatic (S6)
8-cyl 4.4L Rear-Wheel Drive 152217 MPG $4,850
645ci Convertible
Manual 6-spd
8-cyl 4.4L Rear-Wheel Drive 132116 MPG $5,150
645ci Convertible
Automatic (S6)
8-cyl 4.4L Rear-Wheel Drive 132116 MPG $5,150
EPA estimates under standard test conditions. Your mileage will vary with driving style, load and weather.

At EPA assumptions, the most efficient version costs about $4,350 per year in fuel, versus $5,150 for the least efficient.

Work out what this car would cost you in fuel each year

Fuel economy in other model years