For the month of June Chrysler LLC suffered the greatest dip in sales among major automakers, a plunging 36% compared to one year ago, with just 117,457 cars and trucks sold.

In a statement, Chrysler co-president Jim Press said, "The June results reflect the industry-wide impact of U.S. consumer confidence being at its lowest point since 1992."

The vehicles with the weakest performance included the Jeep Commander, down 68 percent; the Dodge Durango, down 67 percent, and the Chrysler Aspen, down 49 percent.

In an effort to counter these numbers, the company has decided to extend its price guarantee of $2.99 a gallon gasoline, dubbed Let's Refuel America, through the end of July.

Vehicles that did perform well included the Patriot, a small SUV, which picked up a 6 percent sales increase. The Dodge Grand Caravan was the lone high performer, picking up a 52 percent sales increases over one year ago.

Conversely, in a signal that some people, regardless of economic conditions or gasoline prices, will not give up their performance cars, Dodge also moved 1,024 of its new Challenger muscle cars during the month. At a suggested MSRP of $40,095 and getting only 18 mpg in town and 25 on the highway, the Challenger is neither economical nor fuel efficient.