2000 Saturn L200 l review from North America

I was searching the web to see if anyone else had the problem I experienced. After reading the posts I see I am not alone. This must be a known defect in the Saturn motor. The car stopped running, when I accelerated it just stopped running. I had it towed to the shop to find that the timing chain had broken and wiped out the valves. I had the engine replace with a low mileage used one (24000 miles). Now I have 50000 additional miles on the engine and it stopped running. It was as if the car was out of gas. It seemed to have compression, but the shop said the timing chain had slipped and wiped the valve out again. Someone has to know if this is a defect.