The car looks fine from the photos, its exterior condition looks like it has only done 28k miles
In general, when you're looking in person you want to be looking to see whether the general wear and tear of the car is what you would expect from a car with its current mileage so seats in good condition, few cosmetic defects, how worn out the steering wheel and gear stick are, is the dash in good nick or covered in scratches and blemishes etc. If the interior looks worn out and the steering wheel/gear stick are worn smooth then that would raise some red flags in my book.
Driving wise, does it feel mechanically sound. You can compare roughly to how your old KA drove but it probably won't be exactly the same. Does it sound smooth idling, is it pulling to one side. Start it up and let it idle for a few minutes, then pull it forwards and check for oil leaks etc. I suppose the other thing you can do is ask to get the full registration or try and find it on the vehicles documentation then check it online. old cars with low mileage aren't unheard of but look at its mileage at each MOT and check if it is increasing in regular amounts. i.e. on a 56 plate car with 40k miles, Id expect roughly 4k miles a year at each MOT. If they won't give you the full registration though, Id consider that another red flag as they are trying to stop you from checking the cars history
I highly doubt a dealership would try and tamper with the odometer now considering a vehicles history is very easy to get hold of but you do need to put in a little bit of legwork