I don't own a M3W but I have driven one, it was noisy, not very comfortable and top speed was limited by what my eyes could take in the wind - it was absolutely fabulous and one of the best things I have ever driven, and certainly the most fun I have had at relatively low speeds.
One day I will own one, and I will forgive it for everything it does wrong - because it does so much so very right.
Nick
My view exactly.