Collision tests can be gamed obviously by designing for the fixtures used... But the variety of fixtures in use and testing protocols imposes a decent all aroun

Collision tests can be gamed obviously by designing for the fixtures used... But the variety of fixtures in use and testing protocols imposes a decent all around level. It's hard to cheat when 3000 lbs of steel is crashed at 40mph against a concrete obstacle. Fuel consumption however, now that is rife for cheating by trading off performance for better fuel consumption in the ECU and automatic transmissions.