Highlighted green for fuel economy miles per gallon information and green for types of vehicles sold and the mix which is weighted towards bigger vehicles. More than 55% of all new vehicles purchased in 2005 were minivans, pickup trucks, vans or SUVs, says R.L. Polk, an auto-data provider in Southfield, Mich. Despite gas prices topping $3 a gallon in California and other parts of the country, light trucks have outsold passenger-car vehicles for the first six months of this year, making up 52.5% of total vehicle sales, according to Autodata Corp. The average fuel economy of new 2006 models was virtually flat with a year ago at 21 miles per gallon, according to the latest EPA report, despite the increasing deployment of technologies such as systems that shut off cylinders in V-8 engines and six-speed transmissions. The incremental gains from those technologies were offset by consumers, who continued to buy lower-mileage minivans, pickup trucks and sport-utility vehicles....