Adding value to a vehicle intended for dual-duty city and offroad use isn't a hard thing to do. Doing it in this economy, and actually selling vehicles, is another. Chrysler is hoping it's hit the right balance with the new Rocky Mountain Edition Jeeps, released today.

The packages combine a set of desirable features valued at about $2,300 for a retail price of just $1,595 - making the idea attractive to those in the market for a capable off-roader, but potentially adding unwanted expense for those on a budget. Included features are a power sun roof, special 17in alloy wheels, unique exterior paint options, Boston Acoustics audio (not on the Liberty), and on the Grand Cherokee and Libery, a uconnect tunes 30gb electronic library.

Each model also gets a few unique features, like leather-wrapped multi-function steering wheel for the Patriot, deep-tinted glass for the Liberty and heated front seats for the Grand Cherokee.

Standard drivetrain for the Patriot is a 2.4L four-cylinder with a five-speed manual rated at 172hp (128kW) and 165lb-ft (222Nm) of torque. That's good enough to get you 23mpg city and 28mpg highway - not bad for a compact SUV with 4WD. The Liberty steps up to a 3.7L V6 with 210hp (157kW) and 235lb-ft (319Nm) of torque, good for 15mpg city and 21mpg highway.

The Grand Cherokee features the same engine as the base option, but also has an available 305hp (227kW) 334lb-ft (453Nm) 4.7L V8 as a choice. The V8 is a flex-fuel capable unit, opening up use of a wide range of ethanol-blended fuels.