Really?If I was faced with the prospect of driving the same car for 300k or 400k miles I would cut to the chase, find the nearest 20-30 story building and take a swan dive off of the roof.
After 12 years of ownership, the S600 remains a wonderful car. Incredible power, wonderful ride, precise, communicative steering, outstanding handling, great brakes, superb seats, and it’s quiet and smooth at very high speed. Triple digits, and it is loafing along.
I think it depends on the car - I would be very happy driving that particular car for another couple of decades.