My Cooper 1.5 has less than 1000 miles. I was recently away and did not drive the car for a week. When the car was started a good 10 seconds worth of blue grey smoke was blown from the exhaust. I have since noticed that the car does this to a lesser extent if left standing over the weekend. The car is booked into the dealer for investigation and Mini has been informed. Have there been many cases of this or have I just been unlucky?