If you are still interested in the car you mentioned in your first post, call the dealer, visit him, put one (or more
) eye on the car, ask for a trial even with this car. Not a similiar one...this car to avoid any problems concerning equiment, motor etc.
Then, if you still feel good with that car, i would place a bid of 20k for example and see what happens. If the dealer is interested in selling the car asap, he will lower his margin for sure.
I know that you have the money and you are willing to spend it, but why paying more than possible?
The money you save can be used for winter wheels, a holiday or whatever...
BTW...is an automatic gearbox very important or could it be a manual 6 gear box as well?
This dealer has some Astra K ST Innovation for prices around 20k with low km as well: