Overview & Reviews

Following last year's redesign, the Infiniti M45 gets only minor tweaks for 2007. A 10-way power-adjustable passenger seat has been added to the standard features list, along with a compass and a HomeLink remote transmitter. The car's Technology and Journey packages have been revised, and a new Advanced Package has been added. New SAE engine rating procedures have also resulted in lower power figures for the V8, but actual performance is unaffected.

• Explosive power from a smooth V8, roomy cabin, sharp steering, responsive handling, long list of luxury features.

• Some mediocre interior trim, center stack controls can be a challenge to decipher.

User Reviews:

Showing 21 through 30 of 31.00

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  Japan made a good sport sedan - 2007 Infiniti M45
  By ignacio garcia - May 16 - 4:00 am

  After researching several cars in this class including the BMW550 and the Lexus IS350 and others, I selected the M45Sport for its handling and value. Two problems for a 65 year old like me are: 1) Stiff ride for long trips. 2) Road noise. Gas mileage is another problem. Toyota has the technology backwards: If you want the sensing of front traffic while on cruise control or lane change notice, then push a button not the other way around. Excellent car overall.

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  m45 - 2007 Infiniti M45
  By rmelli - January 18 - 1:40 am

  I have the M35X not the 45. I find the 6 to be big enough to get me out of any tight spots without any requirement for a larger engine. The car is a wonderful machine. I had to get used to the dash system, but once mastered it became very easy to navigate. I look forward to driving this car as it handles like a dream in the curves an open road. I have owned two Lexus a 2001E and 2000G. Both were wonderful cars but I like my Infinity best of the three.

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  M45 Review - 2007 Infiniti M45
  By Dan - January 20 - 2:10 pm

  While this car is complete with everything, the only thing that is in need of improvement is the Sport Rims. The car runs fantastic with every possible feature, DVD, Bluetooth, navigation with voice recognition, etc. However, the roads here in New England make sense for stronger sport rims as they are built too soft and have twice caused major cracking to the wheels which had to be replaced. While this is a not necessarily a flaw, normal driving conditions in New England include potholes, and hindsight is 20/20 and I would have chosen different more durable rims, although the sport rims give a better appearance.

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  1a - 2007 Infiniti M45
  By mboy - December 30 - 10:40 am

  After 3500 miles the M45 has been a pure joy to drive. The rear view camera works very well as does the adaptive speed control. The lane departure function can be annoying on streets that have uneven surfaces or are a bit rough as these surfaces are picked up as lines and false readings are frequent. I am about to turn this feature off. Acceleration is more than adequate and handling is superb. Fuel consumption is a bit disappointing at only 16 mpg combined. Overall a great car.

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  Best Car in Class - 2007 Infiniti M45
  By Mak - December 3 - 1:33 am

  I bought the M45 sport 2 months ago and cant be happier with the choice I made. This car handles and drives better than the competing 5 series models I drove and leaves most luxury sedans in the dust. It wasnt the value that drove me to buy this car (it is way cheaper than the beamer) but the overall package. Even the much more expensive BMW 550 doesnt deliver the luxury this car delivers, and I prefer the interior of this car. The back seat passengers have more leg-room and can actually adjust their seats. This is the first time my two kids have stopped fighting over the front seat. The younger one actually prefers the back. Overall, couldt be happier. Love, love the car.

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  best car on the market - 2007 Infiniti M45
  By h d a - November 15 - 11:46 am

  you cannot buy a better car. has all the toys that a man could want.

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  Most fun sedan I have ever owned - 2007 Infiniti M45
  By Jim Cahill - August 7 - 9:36 pm

  Overall, this is a great sedan. The mileage is rated at 17 city and 23 highway and I have been averaging about 19 combined. I live in Minnesota and we had our first major snowfall yesterday. With rear wheel drive and the all season tires it did not perform well so I am having some snow tires put on. That should make a huge difference.

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  Best car Ive ever owned - 2007 Infiniti M45
  By mike8231985 - July 9 - 5:08 pm

  I had a Mercedes E-class prior to this and was ready for something more sporty. Im in my 20s, and I think the E-Class is geared towards older people who just want comfort. The M45 is for people who like to drive hard and get thrills from speed and performance. I never thought a sedan would be as much fun/more fun as my BMW 330ci. Reliability is amazing and part of the reason I decided against buying another German car. The Infiniti fits my personality a lot better than the stuffy E-class.

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  Outstanding Sport Sedan-Best for the US! - 2007 Infiniti M45
  By Dave - June 10 - 7:43 am

  I test drove BMW 335i and xi, 328xi, and 535i and xi, and although these cars were more aggressive drivers cars than the M45 sport sedan, I purchased the Infiniti. Major deciding points: M45 was priced similarly to the 335xi, but had more power, better features, and much better interior than any of the BMWs. If I were driving in Europe, I would buy the BMW, but in the US, the M45 Sport is a better package and it is cheaper!! By the way, the 328xi and 530xi do not even compete with the M35, let alone the M45. If you are seriously considering any version of the 2007 328 or 2008 530, do yourself a favor and compare it to the M35/45. Infiniti clearly beats these cars!

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  M35 - Great Car for Non-Soccer Phase - 2007 Infiniti M45
  By fagnaml - April 29 - 9:06 am

  We purchased an M35 for our new "non-soccer parents" phase of our life (were in our late 40s). After ~6 weeks of driving we are extremely pleased with the comfort and performance (not surprising considering our last vehicle was a Toyota Sienna minivan). The disappointment is the mileage is at the low end of its rating (were getting ~20 mpg when gas is >$3/gallon!). We test drove the Lexus GS 350, Mercedes E350 and Acura RL. The M has the comfort and peformance we wanted.