How many miles per gallon does a 2005 Bmw 645ci Convertible get?

A 2005 Bmw 645ci Convertible gets up to 15 miles per gallon in the city, up to 22 miles per gallon on the highway. This means a 2005 Bmw 645ci Convertible can get up to 17 miles per gallon overall.

Year:	2005
Make:	Bmw
Transmission:	Auto(S6)
Engine:	4.4-liter V-8
Model:	645ci Convertible
Class:	Subcompact Cars
City MPG:	15
Highway MPG:	22
Combined MPG:	17
Fuel Type:	Premium
Estimated Fuel Cost:	$2333.97*

* The estimates are based on the assumptions that you travel 15,000 miles per year (55% under city driving conditions and 45% under highway conditions) and that fuel costs $2.224/gallon for regular unleaded gasoline, $2.724/gallon for premium and $2.362/gallon for diesel.
(All amounts in USD. Costs updated on October 3, 2016 from AAA Fuel Gauge Report)

^ E85 prices cannot be accurately calculated, therefore they are based on the price of Regular gasoline.