Chrysler's Biggest Problem These Days? Keeping Up With Demand

Happy days are humming again for Chrysler, as Tuesday’s robust profit report showed, but life in the fast lane is proving stressful.

CEO Sergio Marchionne admitted as much in a conference call after posting a 16% jump in second-quarter profits to $507 million, on sales of $18 billion.

Despite a slew of strong numbers for the first half of 2013 — rising sales and market share, higher car and truck prices — Chrysler lowered its forecasts for full-year vehicle shipments and profits.

How come?