Chrysler's weaker models could be weeded out under plans by chief executive of Fiat Sergio Marchionne.

Marchionne took over control of the struggling US carmaker in June after the Italian company took a 20 per cent stake in Chrysler in return for nursing it back to health with the help of Fiat's technology.

The plans could also include tweaking prices prior to new designs being launched in about two years' time, reports The Guardian.

On Friday Marchionne said he hoped to have "at least a roadmap from a product standpoint" in 14 days and on Wednesday said he wanted to decide what to do with Chrysler's Dodge and Fiat's Alfa Romeo brands by the end of this month.

Analysts believe new models for Chrysler will take at least two years to be ready for the market.

Industry commentators believe the Chrysler Sebring, Jeep Compass and Patriot could all be dropped in the short-term, as well as the Dodge Caliber which could either be dropped or re-engineered.