93er suddenly loses oil – where does it come from?

hello together, this morning at parking I had to find that my saab 93 cabrio of 2000 suddenly loses oil. suddenly because the oil stains were actually only visible during the parking process. I drove the car quickly home (about 5 km). he still loses oil. but there is no warning in the display. if I see it correctly, it drips in the front third of the car, about height between the front tire, next to the exhaust pipe, what about this s where could it come from? what do I have to pay attention to during “sampling trips”? what problems could happen – if at all – if I continue driving? infos: the car received tüv in april 2010 without any significant defects. since then it hasn’t been driven much. but it already has 180000km on it. the last 30 liters he has received instead of super plus only great at the filling station. thank you very much, i.