Hello, I’m thinking if I should buy a Saab 9-5 2,3t se limousine. The car has almost 100,000km on the hump and is from 10/97. It is a checkbook and first-hand. It is offered by a Saab dealer. What do I need to know before buying it? Drive almost only in the city. Is the car worth it or do I have an engine damage? Thank you very much.