From 20 September 2021 the car plus trailer test will cease to exist. Car drivers will be permitted to pull an outfit with a MAM of 7 tonnes. Information can be found by clicking this link which hopefully will be updated. It is rather terse at the time of writing
https://www.gov.uk/car-trailer-driving-test
The shortage of truck drivers has lead to this move. Shortening the LGV test and abolishing the B+E test will put more truck drivers on the road.
It will be an interesting experiment and will, no doubt, highlight the value of training and testing. I predict an increase in accidents associated with large vehicles and trailers. Hopefully normality will resume once the truck driver shortage has been alleviated.
John Silvester 13 September 2021