American automakers pay Mexican workers $8 to $10 per hour, including benefits. Even among the Detroit Three, there is a gap, according to the CAR: GM's labor costs average $58 per hour, while Ford is at $57 per hour and FCA workers average $48.merican automakers pay Mexican workers $8 to $10 per hour, including benefits. Even among the Detroit Three, there is a gap, according to the CAR: GM's labor costs average $58 per hour, while Ford is at $57 per hour and FCA workers average $48.