Sorry, what significant methods are there for a PAYE employee to "minimise their tax burden"? Outside of pension sacrifice, which involves locking away a lot of money during the period of time you most need cash, potentially for a single digit tax savings in the end, there's hardly anything.
Relatively few employers provide childcare onsite and if you don't currently work for one of them no luck. (At £100k+ level it's also relatively hard to "just change jobs".)
Student loan debt is real debt at this level, not an indefinite grad tax, and interest rates lately have been extremely high - many people I know have been trying to pay them off actively since they'll have to do it anyway, with extra payments on top of the several hundred a month mandatory ones.
Mortgages - well, let's just say I'm glad my housing costs are no longer inflation-linked, but even for a very modest 2-bed ex-council property with an hour commute to work we're paying over £3k and that's only by stretching the term as high as the bank would let us, which was above retirement age.
I agree with you about the cars though!