While the name WestCoastCars is a tad ambitious for a site of 11 California auto dealers who offer 600 vehicles, WestCoastCars.com is easy to navigate, attractive and has a number of nice bells and whistles. Buyers can use its online concierge service to find just the right vehicle and narrow down their online search by price, mileage and range of years. They can also access CarFax reports, search for only certified pre-owned vehicles and view photos of the cars and trucks for sale.  The site is owned by Houston, Texas-based Group1 Automotive, which owns auto dealerships in the U.S. and UK.