I have yet to find a car as comfortable as the Omega, though we are all different, and I think most people here know I have 2 separate back injuries, so have some unique requirements.
I have no idea how old your are, but guessing from your post that you aint a spring chicken, so confidence can become an issue with changing cars - I did worry that my mum, when she got rid of a beemer she had had for over 20 years, and replaced with a small shitbox, if the tiniest car park knock would shatter her confidence. Fortunately not the case, as the day she picked up her brand new car, she managed to mow down her gate with it, then in a separate incident a day or 2 later, broke her wrist. Fortunately, neither dented her confidence to drive, which she needs to where she lives.
The flip side is, once you start chasing the rot, it can become a annual, expensive event.
So, probably need to see how bad it is, and how much its going to cost, and have an honest reflection on how long you need a car for. 2nd hand car prices are high currently, but may be cheaper option in the long run if you think you will be driving for many, many more years.