• (4.3) 3 reviews
  • MSRP: $207$11,055
  • Body Style: Sedan
  • Combined MPG: 20
  • Engine: 340-hp, 4.5-liter V-8 (premium)
  • Drivetrain: Rear-wheel Drive
  • Transmission: 5-speed automatic w/OD and auto-manual

Our Take on the 2004 INFINITI M45

Our Take

Introduced for the 2003 model year, the M45 full-size sedan from Nissan’s luxury division occupies a spot in both size and price just below Infiniti’s flagship Q45. Borrowed from the Q45 sedan, the M45’s 4.5-liter V-8 engine produces 340 horsepower. A five-speed-automatic transmiss... Read Full Report

What We Don't Like

  • Throttle response
  • Uninspired styling
  • Fuel economy
  • Price
  • Slippery-surface traction

Notable Features

  • 340-hp, 4.5-liter V-8
  • Five-speed automatic
  • Full-size dimensions
  • Premium amenities
  • RWD layout


Consumer Reviews


Average based on 3 reviews

Write a Review


by thekell from Chicago on September 18, 2006

Great car! I have owned a Lexus, Bmw, and and Audi. This car is tops. V8 has great power, with VDC off and shift yuoself mode you are looking @60mph in 6 seconds flat. I bought it used with 27.5K mile... Read Full Review

1 Trim Levels Available

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Our 2004 INFINITI M45 trim comparison will help you decide.


Crash-Test Reports


There are currently 2 recalls for this car.

Safety defects and recalls are relatively common. Stay informed and know what to do ahead of time.

Safety defects and recalls explained

Service & Repair

Estimated Service & Repair cost: $4,800 per year.

Save on maintenance costs and do your own repairs on your 2004 INFINITI M45

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