Used 2005 INFINITI Q45

List price range


  • Elegant and spacious interior, long list of standard luxury features, strong V8, excellent value.


  • Unnecessarily complex interior controls, small trunk capacity, not as athletic as some competitors.
INFINITI Q45 years

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Edmunds' Expert Review

Fast, luxurious and priced thousands of dollars less than most peers, the Q is a solid buy for comfort seekers on a budget. But if owning the best is what matters to you, drive the competition first.

2005 Highlights

For 2005, Infiniti's flagship sedan receives updated exterior styling with new front and rear fascias, a new hood, headlights with integrated foglamps, a new trunk deck lid, LED taillights and fine-line chrome trim. Instead of offering Luxury and Premium models this year, Infiniti will sell a base Q45 (with all the Luxury equipment) with an optional Premium Package. Inside, the Q45 features new "sport contour," double-stitched seats and a new instrument cluster, along with a metal-trimmed shifter bezel, metal knobs and dark maple wood and chrome accents. The transmission has been recalibrated for better response, and the performance-tuned active dampening suspension, previously available only at the Premium level, is now standard on all models. Base models get a new 17-inch alloy wheel design this year. Other enhancements include standard rain- and speed-sensing wipers, a revised DVD-based navigation system (also standard), and new brake-operated "pre-crash" front seatbelts, which tighten under emergency braking.

Consumer reviews

Read what other owners think about the 2005 INFINITI Q45.

Overall Consumer Rating

Most helpful consumer reviews

Fun, powerful, why wast on a BMW?
I drive 2005 Infiniti Q45 while my wife drives 2005 Lexus ES330 (got the Lexus first). Falling love with the Lexus right away, which does everything best. I thought the Lexus has finest steeling ever. Well, after the Q45, there is no way for me to trade with my wife’s Lexus, the smoothest steeling ever! Solid and heavy. very firm handling. don't feel 4000 lbs at all when I curve the car around. Manual mode (5 speed clutch-less) shift is so fun! Know how 340 hp can do, use the manual mode and 3rd gear,step on the gas! Now I know what is a difference between $40K and $60K cars! I am so spoiled by the Q45, I afraid I will have a hard time to think of other car.
You cannot go wrong if you buy it used
This is the best car for the money, Only if you buy it used. Let somebody else pay Depreciation. This car is great, Smooth runing, little to no road noise, and very nice looking inside and out. The exterior is smooth but does not stand out in a crowd. But if you are looking for great value , a great ride , great luxury features, great quality, and great reliabilty then the Q45 is your car. By buying my Q used save $23,000 dollars from the sticker. My 2005 Q45 with XM radio and 18,000 miles cost $35,000 in May 06. . But if you want to pay $20,000+ more for the Lexus or Mercedes name. that will be all you are getting just the name. The Q45 is the best luxary car value on the market.
Ridiculous value for such a luxurious car
I was looking for an every day car for myself after my previous car, a 2000 Dodge Neon finally died. The Neon was my first new car purchase and served me well through the years, but being 12 years older and more successful, I wanted to get something nice to drive that wasn't going to cost an arm and a leg. I searched Craigslist for about a month in the hopes of finding a deal and low and behold, I find this beauty. I honestly thought the $15k price listing was a type-o until I did some research and saw how much these cars depreciated in value. No matter. After viewing/driving the car I felt like I was getting away with robbery.
What a great car for any amount of money, but even more so when the prices are so low. Very fast, and luxurious. If you are looking to buy, I'd recommend finding one with the premium package as it adds a lot of goodies. On the description above it did not let me select Premium but only "base". Premium adds air conditioned front seats and many cool things for rear seat passengers like electric reclining seats and radio and AC controls.
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Features & Specs

16 city / 22 hwy
Seats 5
5-speed shiftable automatic
340 hp @ 6400 rpm
See all Used 2005 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
  • IIHS Small Overlap Front Test
    Not Tested
  • Moderate Overlap Front Test

More about the 2005 INFINITI Q45
Used 2005 INFINITI Q45 Overview

The Used 2005 INFINITI Q45 is offered in the following submodels: Q45 Sedan. Available styles include 4dr Sedan (4.5L 8cyl 5A).

What's a good price on a Used 2005 INFINITI Q45?

Shop with Edmunds for perks and special offers on used cars, trucks, and SUVs near Ashburn, VA. Doing so could save you hundreds or thousands of dollars. Edmunds also provides consumer-driven dealership sales and service reviews to help you make informed decisions about what cars to buy and where to buy them.

Which used 2005 INFINITI Q45s are available in my area?

Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2005 INFINITI Q45 for sale near. Simply research the type of car you're interested in and then select a used car from our massive database to find cheap prew-owned vehicles for sale near you. Once you have identified a used vehicle you're interested in, check the Carfax and Autocheck vehicle history reports, read dealer reviews, and find out what other owners paid for the Used 2005 INFINITI Q45.

Can't find a used 2005 INFINITI Q45s you want in your area? Consider a broader search.

Find a used INFINITI Q45 for sale - 8 great deals out of 9 listings starting at $12,923.

Find a used INFINITI for sale - 4 great deals out of 18 listings starting at $9,822.

Find a used certified pre-owned INFINITI Q45 for sale - 10 great deals out of 20 listings starting at $23,639.

Find a used certified pre-owned INFINITI for sale - 8 great deals out of 17 listings starting at $13,655.

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Should I lease or buy a 2005 INFINITI Q45?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

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