Because I was a hospital car volunteer driver, and in a rural area where I would often do a long trip in the morning and another in the afternoon, I would rack up a large mileage. You were only paid for the fuel, so of course , there was nothing towards the depreciation on the car etc. So as Baldrick said " I had a cunning plan" Any brand new car is going to lose a lot on depreciation, and at the same time being brand new, you might be unlucky and get a "friday afternoon" car where there were lots of faults and stuff to be sorted. So I found a way that worked for me.
There is a local garage that does the Mobility Scheme cars. On this scheme, the garage sorts it out for the driver, and does maintenance and stuff, so although I do not know the exact things they do, the main point is that the car starts as brand new, it is very well looked after and maintained. Very often the drivers will not be doing large mileage, and then if they have some limitations that might become worse, they may have to change their car or give up driving if their eyesight deteriorated. So I used to watch out for a suitable exmobility car about 2 years old. The worst of the depreciation from new has happened, and then I would drive it for another 2 years, when at 4 years old , the mileage looked normal . You know that it has been properly looked after.
I found a particular garage that did this work, and then used this plan, so that when the mileage was getting higher I would contact them, asking them to look out for a suitable car for me and let me know. They would contact me and I would then px the present car for the next one. During the covid time when second hand cars were making high prices, I actually got more than I had paid for it 2 years previously.
So I think it might be an area that you could look into as you will know that the car is working well and so forth. I now have a Ford Kuga, through this scheme, and it will be my last car. Sadly for the previous owner, he had bought it brand new but after about 18 months was no longer able to drive and I bought it with only 8000 miles on the clock, in very good condition. As others have said, with leasing, all the stuff about scratches etc can add to the hassle, and you also have to be aware of the fly types , who will try and con you on that front. So I suggest that if you do decide to lease, when you go to collect the car, that you walk round it taking photos of every angle and side. Make sure the person leasing it to you sees you do it, so that are made aware that you are no pushover, and have photos to show the state it was when you received it!
If you havent done leasing before , it is worth checking with friends locally if they have any recommendations or warnings about specific places. When my husband was working, his firm had leased cars, and he used to do a large mileage . They got a brand new car, I think it was every 3 years or something. When these were going to be changed, a couple of times we were able to buy the old leased one. As he would have been the sole driver, he knew exactly what it was like, how it was driven and so forth and the maintenance. We then bought it for our own use at a good price . So again I do not know how the leasing schemes work now, or even if you would want to try leasing and then buying at a cheaper price or whatever, but it might be something worth considering.
I am sure that GN will have lots of good ideas to consider, and there is always something you hadnt thought about. Finally while you are thinking about what changes you might make, do just have a think if your requirements have changed, so any problems such as a bad back, where a particular make or car is now more or less comfortable than in the past etc. I know that because we are experienced drivers , who may have driven a particular style of car for years, we dont always think of changes that may have occurred. My back is getting more painful and I find the drivers seat in the Kuga is actually one of the most comfortable seats for me. On really bad days I have been known to go out with my book and sit in the car to read as it was more comfortable than sitting in the house!!
Good luck finding something to suit you