l put 15k mi a year on it and change the oil religiously. l heard these cars can last a few hundred thousand miles without any type of major overhaul (transmission, engine rebuild etc) is this true?

It is the most reliable German car. It should easily last past 200,000 miles.

It should last 200,000 miles like C7S says, but it also depends on how you drive it. Lots of high power pulls and very short trips will affect the longevity of the car. Also the climate and roads. If you live in a mild climate like So. Calif, then you will not see salt on the roads or sand storms.

The October, 2008 edition of ''Excellence'' magazine has an article about a Porsche that has been running for 831,000 miles. Two engine rehabs and a repaint. It was a 2.2 liter 1970 911T. The owner changed the oil religiously, and paid close attention to such things as the wheel bearings, etc., that tend to show wear. The magazine is devoted solely to Porsche enthusiasts. Excellence-mag.com.

A car can last forever as long as you give it regular matinence and repairs. If you do not put a lot of stress on the engine and transmission, they should last a few hundred thousand miles like you said. But every car would need some major part for the engine after that period of time. But like l said, if you are kind to the car, then the car could last as long or even longer than 300,000 miles.