by Chris Woodyard
USA TODAY
April 28, 2013
Every time we’ve driven a new diesel car lately, we’ve been amazed at how indistinguishable they have become from conventional gas cars. No clatter. No smoke. No rattling engine noise. Now it appears consumers are catching on: Registrations of diesel-powered passenger vehicles increased by 24.3% in the U.S. from 2010 through 2012, says an advocacy group, the Diesel Technology Forum.