Car hire price comparison website Carrentals.co.uk tops social media rankings has topped the rankings for both SEO and social media marketing, according to a new report. In the latest independent Car Hire sector research from search engine marketing agency Greenlight, Carrentals.co.uk achieved 53 percent of the 763,000 searches performed in October last year. The rental website also recorded the highest Social Media Popularity Index (SMPI). “Over the last year we have incorporated an enhanced social media marketing strategy, offering new and existing customers a quick and easy way of interacting with us, and this investment is now achieving demonstrable results,” said Gareth Robinson, managing director of Carrentals.co.uk. The report also revealed that in natural search Carrentals.co.uk was the most visible site - ranking in first place for both domestic and worldwide search terms in October 2010, with 54 percent and 53 percent respectively, helping it achieve a six percent increase in its online visibility since July 2010.