Used 2003 INFINITI Q45

List price range


  • Great stereo system, powerful V8 engine, blazing headlamps.


  • Uninspiring front-end looks, fussy controls.

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Edmunds' Expert Review

Designed to compete with the best sedans on the market, the Infiniti Q45 bundles prodigious levels of luxury and performance into a reasonably priced and attractive package.

Top consumer reviews

Read what other owners think about the 2003 INFINITI Q45.

Bullet Proof Reliability - Incredible Performance
readmore, 4/21/2012
What we want in a car is a little like the work we what from our car mechanic, i.e. - Fast & Cheap & Good. The trouble is... you only get to pick two because the holy trinity of all three is as elusive as a Powerball Jackpot. So what most of us look for in a car is a balance between the car world's current holy trinity of Performance & Reliability & Fuel Economy. I believe that this is exactly what F50 Q owners have done. These cars are unbelievably well put together and their performance (esp. if the car is equipped with the Sport package) is enough to make most full sized BMW owners wish weren't so pretentious. Fuel Economy is the bit that lags at about 17/22 but what a car!!
Good Stuff Cheap
seldomseen, 1/18/2008
I just bought an '03 Q45 in pristine condition. The luxury options on this car are more than generous. The power of the engine is amazing too. It doesn't seem to handle as taut as the 03/04 M45s but it does drive a lot smoother though. This generation Q45 is attractive and comparably equipped as the likes other Asian and Euro vehicles within this "new" price segment.
Best Kept Secret Ever
benhurr, 10/11/2010
I purchased my preowned (one-owner) 2003 Luxury Edition this past August, and got it for peanuts (the sticker on this car when new was $62,750). This is my 3rd Q45. After driving my 1997 Touring edition for over 168,000 miles with no major repairs needed, I was looking for a newer replacement. At the price I paid, I could not pass this car by even though it is 8 years old. This car is amazing and I still can't believe it did not do better from a sales perspective. I've owned Mercedes, BMW's, Acura, & Lexus and none of those cars can match the features, ride, performance and fantastic reliability. In case you can't tell, I love this car.
infiniti lover, 1/6/2003
this is an amazing car. I cross shopped it with every car thinkable..had budget of $100,000 but still got the Q....very amazing!
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Features & Specs

16 city / 22 hwy
Seats 5
5-speed shiftable automatic
340 hp @ 6400 rpm
16 city / 22 hwy
Seats 5
5-speed shiftable automatic
340 hp @ 6400 rpm
See all Used 2003 INFINITI Q45 features & specs


IIHS Rating
The Insurance Institute of Highway Safety uses extensive crash tests to determine car safety.
  • Side Impact Test
    Not Tested
  • Roof Strength Test
    Not Tested
  • Rear Crash Protection / Head Restraint
    Not Tested
  • IIHS Small Overlap Front Test
    Not Tested
  • Moderate Overlap Front Test

More about the 2003 INFINITI Q45
Used 2003 INFINITI Q45 Overview

The Used 2003 INFINITI Q45 is offered in the following submodels: . Available styles include Luxury 4dr Sedan (4.5L 8cyl 5A), and Premium 4dr Sedan (4.5L 8cyl 5A).

What's a good price on a Used 2003 INFINITI Q45?

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Which used 2003 INFINITI Q45s are available in my area?

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