The new Infiniti G25 sedan gives buyers a new, more affordable way to get into one of the company’s best-selling luxury sedans.

The 2011 G25 has the same exterior, interior and chassis as the G37 sedan, but has a smaller displacement engine that earns better mileage ratings. The 25’s 2.5-liter V-6 produces 218 horsepower and 187 lb.-ft. of torque, while the G37 is equipped with a 3.7-liter V-6 that blasts out 328 horses and 269 lb.-ft. of torque. The smaller V-6 in the G25 gets 20 miles per gallon in the city and 29 mpg on the highway. The G37 figures are 19 mpg in the city and 27 mpg on the road. Both engines are mated to a 7-speed automatic transmission.

Infiniti believes the G25 sedan’s base price of $30,950 will enable a wider range of buyers to get into one of the company’s upscale sedans. The G25 sedan Journey edition is priced at $32,350 and the G25x sedan AWD is $33,950. Even the top end G25 x sedan AWD is priced below the G37 sedan.

Infiniti was one of the only luxury brands offering just one engine, and the G25 gives Infiniti buyers another engine choice. And choices are just about always good.

Our RWD test G25 Journey edition was outfitted in 17-inch aluminum alloy wheels and was pure Infiniti luxury inside. The heated leather seats were firm and appropriately bolstered, with adjustments possible eight different ways. Dual-zone climate control has rear seat vents, and the vehicle has an intelligent key with pushbutton start. A rear-view camera with a 7-inch monitor, XM Satellite Radio, Bluetooth and a USB connectivity round out a nice interior feature package. The folding rear center armrest with a pass-through to the trunk came in handy when I easily transported 96-inch closet rods from Home Depot. The only option was the $1,000 power sliding moon roof.

On the road, the G25 is spirited enough for all kinds of driving. It’s quiet and feels planted on the road thanks to front and rear stabilizer bars and Dual Flow Path shock absorbers. The power steering is vehicle speed sensitive, which means more assist is provided at slower speeds.

When it comes to safety, the G25 has front and rear crumple zones, high intensity discharge xenon headlights and 4-wheel anti-lock brakes, as well as dynamic vehicle control and traction control systems. The Infiniti advanced airbag system is supplemented by front seat-mounted side-impact airbags, and roof-mounted side curtains. The government has not yet rated the G25 in crash tests.

The G sedan is Infiniti’s top-selling line, and the new G25 will make it even easier for more drivers to get in on the Infiniti experience.