http://www.greencarcongress.com/2006/04/us_registration.html
Data compiled by R.L. Polk & Co. and released by the Diesel Technology Forum (DTF) show that registration of light-duty diesel passenger vehicles in the US jumped 31% in 2005 from the year before. Registrations of light- and medium-duty diesel passenger vehicles have grown 80% since 2000—up from 301,000 diesel vehicles that year to 543,777 diesel registrations in 2005.
In the light-duty market, diesel registrations nearly doubled (95% growth) between 2000 and 2005, climbing from 22,543 to 44,031. When given a choice between a gasoline or diesel engine, consumers purchased the diesel engine option almost half the time (45%) in 2005. By contrast, sales of light-duty gasoline-electric hybrid vehicles hit 205,749 in 2005.
Medium-duty vehicles (such as the Chevrolet Silverado, Dodge Ram, Ford F-Series and GMC Sierra Trucks) represent the bulk of the light-and medium-duty diesel sales in the US: 477,853 units in 2005, or 88% of the total.
Most analysts expect the diesel trend to continue due in part to rising fuel prices and the desire to improve US vehicle efficiency. Diesel offer a 20% to 40% improvement in fuel economy against comparable gasoline engines.
Researchers at J.D. Power and Associates predict that diesel sales will approximately triple in the next 10 years, accounting for more than 10% of US vehicle sales by 2015, up from 3.6% in 2005 and 2.25% in 2000.