It's hard to say I'm satisfied. The car is starting very poorly at the moment, even though it just had its service. The fuel consumption has increased by about 0.5 liters per kilometer, and right now, the car is shaking violently when idling.
I was told that there are indications of hairline cracks in the cylinder head between the intake and exhaust valves. I don't know if that's true. The power and acceleration are fine. According to the speedometer, I can reach 235 km/h on a flat road.