After 16 years of driving cheap high-mileage Infinitis and Hondas (200K to 350K miles), we bought a flawless one-owner 150,000 mile Mercedes E-350 for $7900, cash. The car is amazing, and I tell people that it must be like driving a Bradley Armored Fighting Vehicle; it's heavy, powerful, smooth, accelerates like a Corvette, and is way smarter than we are. The traction is unbelievable, and even though it's a heavy car it gets 24 mpg. I suspect that there's no going back to anything less than this in the future. LOL
I was attempting to reach 400,000 miles on my favorite 1997 Infiniti, but, alas, a friend drove the car, didn't notice the hi temp guage indicating that water in the radiator was low, and it expired at 387,000 miles. Very sad. It was like losing an old friend.