Free parking is the biggest car subsidy

Paying commuters to get on their bike is not enough: "Despite growing interest in making bike commuting more popular, bicycle-related benefits are typically dwarfed by the benefits offered for travelling by other modes of transport, especially the car. For example, in the US free car parking is the most common commuter benefit offered – only about 5% of US commuters pay for car parking. The value of those free parking spaces at work is typically well above the US$20 a month awarded to cycle commuters."