A significant part is logged in traffic and other urban areas, where stop and go driving is more prevalent.

We use Environmental Protection Agency Fuel Economy Estimates (City and Highway) for comparison purposes.

You can find out more about those ratings at the EPA Fuel Economy Website, fueleconomy.gov. 

Hybrid and full electric cars have different EPA fuel economy equivalencies; each is dealt with on a case by case basis.

From time to time we will mention warranty information, and data derived from crash testing performed by the National Highway Traffic Safety Administration (the Feds). You can find out more about safety ratings at the NHTSA Safety Rating Website, nhtsa.gov

Pricing information is derived from the manufacturer's suggested retail price as displayed on the "Monroney" window sticker.

Other than the protocols above, the road tests are conducted in the real world, on freeways and back roads and in traffic--the conditions all drivers deal with.

The tests strive to present a mix of American and foreign cars and light trucks in all market segments...from luxury, to economy to all out performance. The tests strive to be as neutral as possible, so you can make your own conclusions. We do mention things we like and don't.