AUBRUN HILLS, Mich. — Fiat Chrysler has begun a major expansion of its dealerships, and may add as many as 400 new stores in the U.S., dealers familiar with the plan told Automotive News.

FCA now has 2,500 U.S. dealerships that sell Chrysler, Jeep, Dodge, and Ram vehicles. By comparison, Ford and General Motors have about 3,100 dealerships each.

FCA has already begun the expansion in some markets, including Houston. An FCA spokesman declined to comment on the plans.