Diesel emissions scandal

The controversy over Volkswagen AG's diesel-emissions cheating took another twist when the carmaker apologized for a test that exposed monkeys to engine fumes to study effects of the exhaust. 

German carmakers faced a brewing scandal on July 24 as suspicions grew they colluded illegally for decades, further damaging the industry's image and exposing it to massive financial risks.

The German transport ministry announced plans on June 27 to set up a new institute to test vehicle emissions to try to restore consumer confidence after the Volkswagen scandal.

The ministry said it would found a new testing institute involving the auto industry, ministries, consumer organizations and environmental groups.