Technical Brief (Automatic - 4.5L - 8 Cylinder)
Gas Mileage (EPA Estimated)
The figures below show what the EPA estimates drivers will experience for fuel economy in "real world" driving situations. This version of the Q45 gets up to 23 MPG on the highway, 17 MPG under city driving conditions, and an estimated combined rating of 20 MPG. Highway fuel economy is a full 35% better than city fuel economy.
- Highway
- 23 MPG
- Combined
- 20 MPG
- City
- 17 MPG
Engine
Cylinders:
8Valves Per Cylinder:
4Displacement:
4.5 LitersGuzzler:
NoTurbo:
NoSupercharged:
NoFuel Type:
PremiumGas Mileage (EPA Unadjusted)
The figures below show what the EPA observed for fuel economy in labratory tests. These mileages are not typical of "real world" driving fuel economy. In the lab, this version of the Q45 gets up to 30.10 MPG on the highway, 19.27 MPG under city driving conditions, and an estimated combined rating of 22.99 MPG. Labratory highway fuel economy is a full 56% better than city fuel economy.
- Highway
- 30.10 MPG
- Combined
- 22.99 MPG
- City
- 19.27 MPG
Transmission
Type:
AutomaticSub Type:
S5Miscellaneous
Drive System:
Rear Wheel DrivePassenger Volume (4 Door):
107 Cubic FeetLuggage Volume (4 Door):
14 Cubic FeetComparisions
2003 Large Cars
The title for most fuel efficient vehicle in the large cars class in 2003 goes to the Chevrolet Impala with a combined EPA fuel economy rating of 25 miles per gallon. This MPG rating is a full 108% better than the worst in class vehicle, the Bentley Bentley Arnage LWB.
- Chevrolet Impala
- 25 MPG (Automatic - 3.4L - 6 Cylinder)
- Chrysler Concorde / LHS
- 24 MPG (Automatic - 2.7L - 6 Cylinder)
- Dodge Intrepid
- 24 MPG (Automatic - 2.7L - 6 Cylinder)
- Chrysler 300 M
- 21 MPG (Automatic - 3.5L - 6 Cylinder)
- Lincoln Mercury Town Car
- 20 MPG (Automatic - 4.6L - 8 Cylinder)
- Infiniti Q45
- 20 MPG (Automatic - 4.5L - 8 Cylinder)
- Mercedes Benz S430
- 20 MPG (Automatic - 4.3L - 8 Cylinder)
- Cadillac Funeral Coach / Hearse
- 16 MPG (Automatic - 4.6L - 8 Cylinder)
- Mercedes Benz S600
- 15 MPG (Automatic - 5.5L - 12 Cylinder)
- Bentley Bentley Arnage LWB
- 12 MPG (Automatic - 6.8L - 8 Cylinder)
