The number of consumers searching for hybrid vehicles on the US car buyers' website cars.com tripled in February when petrol prices hit $US2 a gallon. The searches have remained and the website now includes a specia hybrid vehicle buying guide to help educate consumers and clarify some myths about hybrid vehicles.

The guide is claimed to answer everything fuel-conscious consumers want to know -- from hybrid vehicle maintenance and new advances in hybrid technology to the differences between the various hybrid models on the market today.

The guide gives consumers a comprehensive look at all hybrid vehicles on the market and a preview some of the new hybrid sport utility vehicles due soon in US dealer showrooms soon; these include the Mercury Mariner Hybrid and Toyota Highlander Hybrid. It also provides details on other fuel-efficient options, including diesel-powered vehicles.

In a statement, cars.com said the guide also helps clarify some of the common misconceptions regarding hybrid vehicles.