HMRC have finally shared benefit in kind stats up to the end of April 2019 which show us that 870 thousand company cars were reported in 2018/19. The overall tax and NIC take by the exchequer rose to £2.46bn. These remain provisional numbers.
This includes cars that were payrolled as well as reported on forms P11D. However, HMRC report some issues with payrolling and suggest this accounts for some of the reduction from previous years.