A guide to our annual Best New Car Values rankings. By Jessica L. Anderson, Associate Editor From Kiplinger's Personal Finance, March 2015 We pick Best in Class and Best New winners based on performance, value and safety. Half the score is awarded for value, including resale, fuel efficiency, front and rear legroom, headroom, and cargo space (trunk space or the space behind the second-row seats in a wagon, crossover or minivan). Sedans are ranked within price categories. Crossovers, minivans and wagons aren’t broken out by price, so we also score on a scale that rewards lower prices.See Also: Best New Car Values, 2015 A vehicle’s safety (represented by crash-test ratings and features such as airbags) counts for one-fourth of the total score, and performance for 10%. The remainder of the score derives from our impressions while test-driving the cars. We assess design and comfort as well as dashboard layout. Sponsored Content Another measure of a vehicle’s worth is its resale value three and five years down the road. These figures, supplied by Kelley Blue Book, are the estimated price that a dealer would pay if you traded in the vehicle, expressed as a percentage of the sticker price. We show five-year total ownership costs, also supplied by Kelley Blue Book, which take into account the out-of-pocket costs such as fuel, insurance and service costs, as well as the car’s loss in value. We also break out service costs, which are an estimate of maintenance and repairs over five years. Advertisement Finally, we choose the most fuel-efficient vehicles based on annual fuel costs, using gasoline prices of $3 for regular, $3.35 for premium and $3.75 for diesel, and assuming 15,000 miles of driving each year. __________________________________ All data in our tables was supplied by Kelley Blue Book. Here’s an explanation of prices: Kelley Blue Book Fair Purchase Price: The Kelley Blue Book® Fair Purchase Price for new cars is generally the midpoint of the Fair Market Range. It is Kelley Blue Book's estimate of what a consumer could reasonably expect to pay in during the period between December 19, 2014 through January 15, 2015 for a new vehicle with standard options, excluding taxes, title and fees. It's based on actual new-car transactions, plus data from other reliable third-party sources as well as market conditions. Advertisement MSRP: The MSRP, or Manufacturer’s Suggested Retail Price, is the price set by the manufacturer and does not necessarily reflect the price actually paid by consumers in your area. The MSRP shown here includes destination and freight charges but excludes services and handling fees and state and local tax, title and license fees. Invoice Price: Dealer invoice represents the dealer’s cost for the vehicle only and doesn’t include any of the dealer’s costs for advertising, selling, preparing, displaying or financing the vehicle. ©2015 by Kelley Blue Book Co, Inc., ©2014, 12/19/14 – 1/15/15 Base Edition. All rights reserved. Kelley Blue Book assumes no responsibility for errors or omissions.