Shares in Fiat gained 1.7%, while Volkswagen shares fell 2% in European trading. Italian stocks were 1.5% weaker.
Transforming classic Volkswagen Beetles into electric cars
Chrysler has enjoyed success under Fiat's ownership. It returned to profitability in 2011 and has been steadily improving sales and market share.
Worldwide vehicle sales last year were 2.4 million, up 9% from 2012, driven by a 14% increase in U.S. retail sales. Chrysler is targeting worldwide shipments of 2.8 million vehicles this year, up from 2.6 million in 2013.