The companies will use their combined volumes to try and leverage better prices on commodities and parts. Most automakers are also relying on suppliers for technology that will help improve efficiency and cut emissions in the next few years and Chrysler and Daimler plan to collaborate on that as well. Chrysler also plans to continue using Daimler's diesel expertise to expand their diesel offerings in the next few years. The Jeep Grand Cherokee already has a Mercedes diesel and other Bluetec diesels will be added probably including the newest 2.2L diesel four cylinder.
[Source: Automotive News - Sub. req'd]