I would not buy a car from this guy, sold me a 2001 porsche 911 and the first time I looked at the coolant less then 200 miles later I found the reservoir was empty, after topping it off I found the coolant was mixed with oil, later I found this is a fairly common with these motors due to cracks in the heads or cylinder liners. I went back to the pictures he posted for the car for sale, there I found a clear picture of reservoir and you can see it is empty. He is always bragging about his team of mechanics if they where any good they would have seen that and I believe he new the problem existed, this problem requires a total and very expensive engine rebuild
Nice!