I dont know much (anything) about the Proton but do know that their not that common, not many dealers and may depreciate quicker than normal.
Im therefore not too sure what the parts/service backup is like and what aftermarket part backup is avaliable but could imagine not too good.
Do some research, talk to the dealer about the price of parts like headgaskets, headlights, fan belts and startermotor etc. and if they keep stock.
Then compare to other brands that are better known and supported.
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