I'm not sure that's true - apparently other royal visits to the same area have used locally sourced vehicles, it's never been an issue.
They seem like a couple who are in complete control of their lives and have cited security reasons for travelling in certain ways - I imagine they will have been very clear that this extends to this visit and will have issued instructions to their team.
Good Morning Friday 25th April 2024
Angela Rayner lashes out and calls Sunak “pint sized loser”.