The Infiniti M45 was produced for the 2003 and 2004 model years only.
When did the M45 first hit the streets?
The Infiniti M45 debuted in 2003 and was discontinued after the 2004 model year.
Built on the same platform as the Nissan Gloria/Fuga, it was tuned specifically for Infiniti’s brand image. You got a 340-horsepower 4.5-liter V8 sending power to the rear wheels through a 5-speed automatic. Just 8,067 units sold across both years—so finding one today isn’t easy.
Do Infiniti M45s hold up as good used cars?
The Infiniti M45 is a solid used luxury sedan for enthusiasts who value performance and simplicity over flash.
These cars pack serious V8 power, a spacious cabin, and a sturdy build—all for less than later luxury models. The ride feels firm by today’s standards, but it rewards drivers who want a sportier feel without going full sports sedan. Just don’t expect cutting-edge electronics or a cabin that’s aged as well as the ride quality. Look closely at suspension bushings and check for oil leaks before you buy.
How quick is an M45 in real-world terms?
The Infiniti M45 can accelerate from 0–60 mph in about 5.6 seconds and tops out around 155 mph.
That puts it in the same league as sport sedans like the BMW 540i and Mercedes E500, though real-world traffic rarely lets you push it to the limit. The 4.5L V8 (VK45DE) is smooth, responsive, and holds up well if you keep up with maintenance. Stick to 5W-30 full synthetic oil and change it every 5,000 miles to keep the Variable Valve Timing system happy.
What’s a fair price for a 2006 Infiniti M45 these days?
A 2006 Infiniti M45 is worth between $1,644 and $7,605 as of 2026, depending on mileage, condition, and options.
Low-mileage examples with the Premium or Sport Package can push toward the higher end, while high-mileage daily drivers often land near the lower figure. Always get a pre-purchase inspection and ask for service records—clean titles and documented timing-belt replacements (around 100,000 miles) are worth paying extra for. Check listings on Edmunds, Kelley Blue Book, and CarMax to compare asking prices.
How do the Infiniti M and G series stack up against each other?
The M is a full-size luxury sedan with a V8 option and a softer ride, while the G is a mid-size sports sedan with a V6 and sharper handling.
The M35/M45 rides on a stretched platform, weighs about 400 lbs more, and still offers impressive rear legroom. The G35/G37, on the other hand, feels nimble in tight corners and uses a quicker-shifting 7-speed automatic (compared to the M’s 5-speed). If comfort and presence matter most, the M wins. If you want a driver’s car with better fuel economy, the G is the better pick.
Is a Nissan Fuga basically a Skyline in disguise?
A Nissan Fuga is not a Skyline; it’s a luxury-sedan sibling of the Skyline, sharing mechanical DNA but wearing a more conservative body.
The Fuga launched in 2004 as Nissan’s answer to the Infiniti M45, using the same VQ35DE/VK45DE engine family and FM-platform underpinnings. Its styling is sleek but business-like, while the Skyline leans into coupé proportions and a sportier stance. If you’re hunting for Skyline parts, double-check the chassis codes—Y50 Fuga ≠ V35 Skyline.
How dependable is the Infiniti M45 in the long run?
The Infiniti M45 earns above-average reliability scores, especially for a 20-plus-year-old luxury sedan.
Watch for occasional VVT actuator failure, worn control-arm bushings, and minor oil leaks from the rear main seal. With proper maintenance—timing belt, spark plugs, and fresh fluids—the drivetrain often surpasses 200,000 miles. Consumer Reports’ long-term survey places it in the “above average” tier for its class, and parts remain easy to find through Infiniti dealerships and RockAuto.
What exactly is an M45?
The M45 is a 4.5-liter V8 engine produced by Nissan for the Infiniti M45 luxury sedan between 2003 and 2004.
Outside of cars, the term also refers to the Pleiades star cluster (Messier 45) and, in genetics, to a Y-chromosome SNP. In the automotive world, though, M45 exclusively means the high-output V8 under the M45’s hood, code-named VK45DE.
What’s a realistic price tag for a used Infiniti M45 in 2026?
The average asking price for a used Infiniti M45 in 2026 is about $13,259.
Prices swing widely by mileage and condition—expect $8,000–$10,000 for high-mileage examples and $16,000–$22,000 for low-mileage models with full service history. Always verify the transmission fluid condition; a neglected 5-speed automatic can lead to costly solenoid or torque-converter repairs.
Can a 2006 Infiniti M35 really reach 200,000 miles?
A well-maintained 2006 Infiniti M35 can reliably exceed 200,000 miles.
Owners regularly report 150,000–250,000 miles when the 3.5L V6 (VQ35DE) gets timely oil changes, cooling-system service, and belt replacements. Use 5W-30 full synthetic oil and replace the timing chain tensioner around 120,000 miles to avoid rattle and potential timing jump. Don’t forget the rear differential fluid—sport-differential-equipped Infinitis can wear it out faster than you’d expect.
What’s a 2006 Infiniti M35 actually worth right now?
A 2006 Infiniti M35 ranges from $1,287 to $6,166 in 2026, depending on condition and mileage.
Clean, accident-free models with under 75,000 miles and the Premium Package can hit the upper end, while high-mileage daily drivers with curb rash tend to cluster near the lower figure. Always compare private-party listings on Carfax and TrueCar to avoid overpaying for average examples.
Is the Infiniti M35 a dependable daily driver?
The Infiniti M35 earns a 3.5 out of 5.0 reliability rating, ranking it 6th out of 30 in the luxury full-size class.
Annual repair costs average $605, which is right in line with rivals like the Lexus GS 430. The VQ35DE V6 is known for longevity when maintained, but watch for power-steering leaks and oxygen-sensor failures. Consumer Reports’ data (as of 2026) shows fewer major issues than the M45’s V8, making the M35 the safer long-term bet for budget-minded buyers.
How much does a used Infiniti M45 go for these days?
The average cost of a used Infiniti M45 is $13,259.
There are three used Infiniti M45 models currently listed near you, with prices varying based on condition and mileage.
