Fiat Coupe 16v Turbo Mispurchase?

I bought a Fiat Coupe a week ago. the articles you read here don’t sound very promising. e.g. bearing damage on the engine, engine runs restless, timing belts torn etc. Is the car really so bad and vulnerable? I bought the car from a Toyota dealer with 17,000 km and 1 year warranty. What can I do, for example, that I don’t get any bearing damage? What maintenance work do I have to do so that I can drive as long as possible? Thank you for every contribution…