Plug-in hybrid vehicles no longer exempt from C-Charge discount Plug-in hybrid vehicles no longer exempt from C-Charge discount Drivers of plug-in hybrid vehicles are no longer exempt from paying the £15 daily Congestion Charge, reported MSN. From yesterday only 100 per cent net-zero cars qualify fo the discount, while before all hybrid vehicles that emitted no more than 75g/km of CO2 could get the exemption, the news site added. The Congestion Charge was [...]