I was meeting with some clients when the topic of "buying new cars" came up.  They were quick to inform me that they were totally against it and bragged about how long each of them had been driving their cars.   Then the wife proceeded to tell me that she had almost 400,000 miles on her Pontiac Aztek.    400,000!  I couldn't believe it.  I don't think I've ever even crossed 150,000.    I was so…