I can join you there, I'm 6ft 4" and so are my 3 sons and with my seat in position they can just about still sit behind me. I have heated seats all round and in the rear there are also removable footrests like there are in a Rolls-Royce as well as the door mounted umbrellas. The BMW 5 Series is supposed to be from a higher level car range, but like so many cars in that arena, its more about paying for the badge. A while ago, while waiting for my car to be manufactured, I was given a hire car for a couple of months, Mercedes C class, it was really awful, once you got over the excitement of sitting behind that 3 - pointed star, you begin to notice the annoying things and the other small shortcomings, especially the lack of interior space. There is no mistake, space is a luxury.
My car was at the dealers recently having a now radiator fitted and the driver who picked me up when the car was ready was telling me that he was selling his wife's Hybrid car and buying a 2nd hand diesel Octavia as people are panic selling their diesels and buying EV's following the governments announcements to ban sales of new ICE cars in 2030. This translates into excellent prices to be had on 2nd hand diesel cars at the moment.
I plane to run mine for as long as possible, I relish the idea of shelling out thousands for new battery packs, or having to keep stopping to recharge. One thing you can be sure about is that when transition to EV is complete, electric prices will escalate like a skyrocket, plus when we all need the electric to be there, it won’t, there will be all kinds of outages due to storms, equipment failures or industrial action etc.