In Singapore, there are several cases of turbo failing. Almost all cases are due to negligence. Wonder if 660 Copen in other countries are experiencing the same problem. I also realised that oil become noticeably darker @ 3000km. Guess oil the 2.7L of oil is working very hard per unit time. Turbo failure main causes in Singapore: 1. Owner had not religiously do oil change @ 5000km. 2. Oil filter not changed @ every 5000km (Manual states 10,000km) 3. Repeated hot shutdowns.