Just my own experience now..... the best thing is to get one that has been really cared for, but I guess that's an obvious point. Always nice if there are no signals from the ECU that some engine component is malfunctioning, and even here in Japan it's considered a good idea to change all the capacitors in the ECU unless the seller can prove it was done recently. Same goes for the timing belt. The a/c and original stereo are the only other vulnerable pieces I know of, and you might not need the a/c in Poland. I've had mine for 4 years, purchased with 81000 kms, and have had no maintenance issues whatever.