Hi

One major benefit of the 169 Panda is that all the major (expensive) aspects (engine, gearbox, structure and bodywork) are strong and unlikely to cause problems (as long as they're not neglected).
I think it's reasonable to expect to have to replace consumables on a car that's coming up to 10 years old.
In coming years you might need to be prepared to replace things like steering & suspension components and bushes, brakes (front discs / rear wheel cylinders), wheel bearings, exhaust, battery, alternator, sensors... (I see you've just had a new clutch)
Obviously it can all add up. And if you find you need multiple things replacing at once then it can end up costing close to the car's value.
I think it's worth doing, personally, especially if you like the car and want to keep it.
Even more so as parts for the Panda are so plentiful and cheap (100HP excepted).
I've always driven quite old cars and I budget £200 a year for running repairs. In the two years I've had it, my 16y.o. Panda's cost me nothing aside from servicing. A newer equivalent car could cost £500-£1000 in depreciation alone every year.
To future-proof a Panda I'd recommend regular fluid changes and checking the following for rust:
- coolant return pipe across front of engine
- engine sump pan
- shock absorbers & springs
- rear axle spring pans
- mud trap behind front springs
- rear brake drums
Also the battery and its earth connections need to be in good condition or the power steering (which draws a lot of current) can throw a wobbly.
And check the 'duckbill' scuttle drains below the wipers are clear - they block easily.