Very shocked to read this, my sincerest condolences to you all. I got to know Mark quite well through helping him with his motorsport endeavours, and did my best to sell him an exotic single seater, but sadly his powerful and tall build precluded him getting in anything modern. I have very fond memories of him, he visited here at home a few times and was a great character, and obviously a very astute business man, as well as being a kind and charming guy. I hope you can come to terms with this loss, he can't have been that old... Life is very cruel, I will say a prayer tonight and keep him in my thoughts, I am so saddened to read this, such very very sad news.