In the next four years, the Chrysler brand and Jeep lineups will expand, Dodge's will contract and all Chrysler Group vehicles will go farther on a gallon of fuel.

The automaker's five U.S. brands -- Chrysler, Dodge, Jeep, Ram and Fiat -- will benefit from new, more efficient engines that are under development.

A revamped 2.0-liter inline-four engine, code-named Hurricane, promises improved power and fuel economy for the automaker's smaller vehicles. Meanwhile, improvements coming to the Pentastar V-6 engine family will provide smaller displacements and better fuel efficiency in larger vehicles.

By 2018, almost all front-wheel-drive-based Chrysler Group vehicles will come standard with a nine-speed automatic transmission, while rear-wheel-drive-based large cars, crossovers, SUVs and pickups will stay with an eight-speed automatic.

Today, Chrysler has regained much of its pre-bankruptcy market share with just a few new vehicles and well-received upgrades of existing ones.

The company will continue to move vehicles to Fiat platforms and eliminate segment duplication across its brands.

To keep pace with ever-tightening fuel economy requirements, Chrysler will adopt electrification, offering a plug-in hybrid minivan for the first time and a plug-in hybrid crossover.

Meanwhile, the Jeep Wrangler is likely to get an aluminum body to shed weight and improve fuel economy.

Pickups and SUVs will remain key to the company's sales goals, and the Ram and Jeep brands will continue frequent product upgrades.

In North America, Chrysler and corporate parent Fiat believe they can grow their sales volume by roughly 1 million vehicles to 3.1 million annually by 2018.

Click here for Chrysler's strategy for the next four years, according to the company's product plan released in May and other sources.