Diesel, no chance 😫 🙂
EGR, DPF, Turbo, Injectors etc wont last the course.
RX450h or a Merc ML, BMW X5 or Audi Q7, there’s really no contest when it comes to long term reliability and running costs IMO.
I have an X5 now and it does 33MPG in my hands, mostly motorway usage.