First, it's not a LM mini, it's a Rally version of the new mini cooper inspired in the one which rallied in the 1960's;
Second, you don't win it, it's a hidden car (like many others in GTC), so you need a sharkport and MK's program to get it (maybe there are other ways, I'm not sure);
Third, you could have searched for this info... it's very OLD news!