Just saw a M50d today and I was looking for a place for them to place the battery loading socket, so I didnt look that closely, but it looked to me like the upper half of the side vents on both sides was closed and on the lower part behind these was a radiator/intercooler. Atleast I know for 100% sure the left lower part was open as I inspected that side. I have the car next weekend, so I can look more closely if I remember and someone needs this info???
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