It’s pricy at $51,850 for the all-wheel drive X model that gets unimpressive gas mileage (14-20 mpg). Yet, the M45 is still priced lower than an upscale SUV and trips 
If you haven’t checked out the M45 in a couple of years, it’s worth a look. Infiniti unveiled the M series in 2003 with the M35 (3.5-liter, V6) and the M45 (4.5-liter, V8). There was nothing wrong with the performance of either one, but both sedans lacked interior space and had conservative styling.
That changed three years ago when Infiniti made some much needed alterations and the M series immediately grew in stature.
Improvements were not as dramatic for the 2008 models, but there are nice changes that make the M45 and its younger brother more appealing and keeps them competitive with two of their biggest rivals — the Mercedes-Benz E-Class and the BMW 5-Series.
In this struggling economy, Infiniti may actually be competing against itself, because picking the M35 over the M45 isn’t a bad idea. The M35 is solid V6-powered sedan that will save money (about $6,500) while providing similar features and more than enough power for most buyers despite 55 less horsepower.
Still, the M45X is the better choice. It looks cool without the engine even running. And the M45X is fun
This test model offered the new Lane Departure Warning system that proved annoying. While the safety fac
The spacious interior is a turn-on, with the M45X now seating five comfortably. Leather upholstery, attractive wood accents, a cool audio system with six speakers, six-CD/MP3 changer and satellite radio are also all improvements.
The exterior that was once dullsville now has a stylish grille, new taillights, headlights, a more appealing rear bumper and some attractive chrome accents.
FAST FACTS
Performance — 4.5-liter, V8, 325 horsepower.
Mileage estimates — 14 mpg (city), 20 mpg (highway)
Standard Features — Adaptive xenon headlights, 10-way power and climate-controlled front seats, dual-zone au
Warranty — Powertrain, 6 years/70,000 miles; Bumper-
Price — $51,850.
