Keeping a car for the long term is always risky because there’s no guarantee that it won’t breakdown some time on the future. But you say your Honda has been regularly serviced, garaged, and hasn’t been in a crash, so if you’re prepared to keep up with the service and take good care of it there’s no reason to get out of it. On top of that 182,000 km is not a lot by today’s standards, so there’s every reason to keep it going. If you do want to switch any of the top selling small hatches should fill the bill.

As a trade-in you would get $4000-$4500, if you sold it privately you might get $5500-$5800.

I wouldn't be too concerned about it, but I would be checking it regularly for signs that it is increasing, in which case I would then be taking it back to my dealer for action.