Overview & Reviews

The M45 performance sport sedan comes standard with class-leading V8 performance and a long list of world-class amenities.

• Brawny V8 engine, capable handling, plenty of luxury features, reasonable price.

• Limited rear-seat legroom and trunk space, fussy control layout.

User Reviews:

Showing 91 through 100 of 105.00

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  Sporty + Luxurious - 2003 Infiniti M45
  By ChristinaG - August 3 - 3:46 pm

  Purchased this car at 54K miles, still under warranty. I find this car to be a happy medium after owning a sporty BMW M3 and a luxury BMW 745i. It is quick like M3, excellent power and performance, but rides way more comfortably and has all the gadgets like the 745i. At 80K miles, I get an average 19.5mpg to the tank and have had only minimal upkeep. A tire pressure sensor needed replaced before 60K miles and the fuel gage, I found out after running out of gas on 1/2 tank, does not register accurately (a $200 part). Other than that I just love it. Roomy trunk, just enough back seat room, great stock stereo options. Rare model so it gets a lot of looks.

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  Best car in its class - 2003 Infiniti M45
  By HMSRelentless - July 30 - 10:00 am

  Ive owned BMW 7 series, Jaguar, etc. This vehicle(M-45) is by far the overall best of its class. I would rate it above the Jag. Lexus or BMW.

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  Fast & cheap - 2003 Infiniti M45
  By Ex-Lexus - June 29 - 2:00 am

  This car is the best buy in its class. The features would cost 10k more on BMW, Lexus and Mercedes.

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  Clark Kent turns into Superman - 2003 Infiniti M45
  By PrinceCharlie - June 12 - 2:00 am

  This car may look like Clark Kent (although I disagree), but touch the accelerator and Superman appears. I think this is one of the most striking vehicles (appearance-wise) on the road, and everyone who sees it agrees. (Hint: if you get the spoiler, chrome wheels and tint the windows, you turn a pretty good-looking car into the ultimate Pimpmobile. A dang fast Pimpmobile at that.) My car is graphite color (dark gray) with the graphite (black) interior. I get tears in my eyes every time I see it. Oh, did I mention its the fastest car Ive ever owned, and it has more horsepower than my last two cars (BMW 525 and Infiniti G20) combined? Sweet.

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  Fun and Practical! - 2003 Infiniti M45
  By IndyDrive1 - February 26 - 2:00 am

  This car has its own "niche". I test drove one today and it did have a hint of the muscle cars of the 70s , but pampering is the order of the day. This car had a great combination of perfomance and comfort.

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  It doesnt Get Any Better Than This! - 2003 Infiniti M45
  By VOLGRAD - February 21 - 2:00 am

  Only problem on the delivery was a squeeking sun visor. To date, nothing is amiss. Even the steering is OK. (Normally needs alignment.) It is hard to imagine that the competitors could produce a better vehicle. I would recommend that any buyer of a luxury sedan should test drive the Q45.

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  Fast and Sure - 2003 Infiniti M45
  By pokey poke - February 10 - 10:00 am

  This car rocks over any luxury sports sedan at its price, and some at significantly higher prices. The V-8 steps off the line nearly as fast as my bosss boxster, but I can fit three buddies in my car and all our golf clubs. Im very happy with it. The styling gets knocked by some reviewers, but I like it, and get nice comments on its lines from folks all the time.

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  Great Valentines Gift! - 2003 Infiniti M45
  By Sherryb - December 11 - 2:00 am

  my new M45 is my dream come true. Super fast, sleek, and extremely reliable. Not only does it look beautiful in black obsidian with willow interior, but it has all the vital safety features that i was looking for, and more! i am so happy with it, that i am telling my friends and familty to go out and buy one. This car rocks!!!

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  M45 more like a 2 - 2003 Infiniti M45
  By Joe Yeager - September 26 - 1:43 pm

  Been in the shop at least 15 times for repairs, 7 for the same thing. Hesitates when accelerating at low to medium speeds - great at highway speeds. Now gas gauge doesnt work, uses 1 qt of oil every 3,000 miles and pings like crazy when first started. Worst car I have ever owned.

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  4 Wheel Rocketship - 2003 Infiniti M45
  By AllenG - September 22 - 2:00 am

  This car is amazing. My previous car was a Mercedes E320. I thought that was a great car, but this car is better in every way. It handles better, classier interior, MUCH faster, and less money. The Infiniti service is on par with Mercedes. This is the car to buy!