During a caution period on lap 160 of the 2012 Daytona 500 sending Montoya careening into a track support vehicle towing a jet dryer .
The 2012 Daytona 500 is a defective rear suspension on his No. 42 Chevrolet inexplicably collapsed .
During a caution period on lap 160 of the 2012 Daytona 500 , a defective rear suspension on his No. 42 Chevrolet inexplicably collapsed , sending Montoya careening into a track support vehicle towing a jet dryer .