If JLR decided post Brexit to build proper utility vehicles for outside of EU clients then it would be fine. They however are moving to India, if you think the land rover marque is tainted by quality and reliability issues now just wait, however as it will all outside of the Eu it wont cost us anymore to buy surat sofas instead of Solihull ones and they may even have doors that stay closed! Other indian cities are available.
JLR employees have been banging their heads against bulkheads for ages. They sussed the cunning plan to move away from UK manufacturing ages ago. Shiny and gizmo packed products are not aimed at UK or even European markets. The big areas of growth are perceived as Asia and the middle east. Unfortunately those who can afford a prestige car that can go anywhere now want it to be electric or hybrid at the very least which poses a problem. JLR products are pretty heavy. Weight is an issue JLR have been trying to address as is electric propulsion and the compromises are in the pipeline or so I'm told. In the meantime the legacy link to go anywhere/British style that generations have relied on and admired now resembles a three star Dubai tourist hotel. New 4 by 4 manufacturer required.