National Geographic : 1925 Oct
FACTS ABOUT A FAMOUS FAMILY <s --- v-- ~ Testing cars to determine value at the General Motors' Proving Ground, near Detroit. The Prov ing Ground occupies 1125 acres. Determining motor car value General Motors has a car for every purse and purpose and seeks to give the utmost value in each price class. On the roads of its great Proving Ground, cars are being driven day and night in tests involving speed, power, endur ance, acceleration, fuel consumption, hill climbing, braking, riding qualities, etc. From the facts observed, engineers are determining a stand ard of performance for each class and are passing on to the factories information which helps them to give added value for the price you are asked to pay. GENERAL MOTORS BUICK' CADILLAC CHEVROLET OAKLAND' OLDSMOBILE- GMC TRUCKS General Motors cars and trucks may be purchased on the GMAC Payment Plan, which includes fire and theft insurance service.