Drivers could be eligible to join – and therefore gain a share of any award – if they owned a diesel car or van manufactured between 2007 and 2018.
The brands included so far are: Audi, Chrysler, Citroen, Fiat, Ford, Hyundai, Jaguar, Kia, Land Rover, Mini, Mercedes, Nissan, Peugeot, Porsche, Renault, Seat, Skoda, Vauxhall, Volkswagen, and Volvo.
Depending on the law firm, motorists can still qualify if they bought the car second-hand, and/or if they no longer own it.
It also includes those who bought it on finance.