Auto Guide
2005 Infiniti Q45
Used

Review and specifications

2005 Infiniti Q45

The flagship of the Infiniti line, the Q45 sedan boasts a powerful V8 and strong acceleration, though it is too big to be agile. The Q45 was marketed as a sporty alternative to the Lexus LS, but handling wasn't sporty, and the car lacked the spacious rear-seat and rich cabin materials found on direct competitors. The "Q" was redesigned for 2002, when it picked up a 340-hp V8, but the ride and handling still aren't world-class. Rear seat room is still disappointing. At least the "Q" offers a wealth of safety equipment and high-tech gadgets, such as a navigation system and backup camera. The Q45 was discontinued after the 2006 model year.

Market value
$4,875
Fuel
Conventional
Transmission
Automatic
Seats
5
View listings Find dealers
Model year 2005
Owner rating Not rated
Reliability Not rated
Data updated December 4, 2025

At a glance

Model data

Overview

Powertrain
Conventional
Body style
sedan
Drive type
RWD
Transmission
Automatic, 5-speed
Category
Ultra luxury cars
Generation began
2002

Pricing

Current retail median
$4,875
Retail value range
$4,875 - $4,875
Original MSRP range
$56,400 - $56,400
Trade-in range
$1,815 - $1,815

Road tests

Test status
Not Tested

Dimensions

Length
200 in
Width
73 in
Height
59 in
Wheelbase
113 in
Weight
4,050 lb
Maximum load
0 lb
Towing capacity
1,000 lb

Interior

Seating
5 people
Front head room
2.5 in
Front leg room
42 in
Rear head room
2.5 in
Rear leg room
31 in
Cargo volume
0 cu ft

Brand context

About Infiniti

Nissan’s luxury sub-brand sells stylish vehicles that deliver mixed results. Fit and finish is usually good, especially in the quiet, luxurious interiors. But Infiniti often falls short of competitors in fuel economy and handling. Some of its vehicles also score low in our owner satisfaction surveys, and most new models scored average for predicted reliability. New vehicles come standard with a full suite of active safety and driver assist systems. The brand’s lowest-priced option is a two-row compact SUV with a variable compression engine that attempts to deliver both fuel economy and sporty performance. The brand’s larger midsized, three-row SUV is roomy and quiet, with competitive fuel economy and quick acceleration. The largest Infiniti is a large three-row, high-end SUV that competes against Land Rover and Mercedes-Benz. With options, its price can cross $100,000. Among Infiniti’s discontinued vehicles, some sedans and coupes can be recommended among used luxury cars.

Vehicle ID: 4657 First published: June 20, 2020 Updated: December 4, 2025

Values may vary by trim, options, location, and market conditions.

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