May 11, 2006:

Mike Cooper at Monterey

According to this NorthAmericanMotoring post from Gary / Cooprd:
… executives from MINI and Michael Cooper, son of John Cooper and principal in John Cooper Works will be introducing the MINI Cooper S John Cooper Works GP car, the most powerful production MINI on the road. Lucky buyers of the first 45 GP cars in the United States will be taking delivery of their cars during the event directly from Michael Cooper and Jim McDowell, head of MINI USA …

Actually, there is information on this even earlier in the NAM thread, back on April 5th:
… one event taking place on Saturday would have the president of MINI and Michael Cooper would be delivering the first 45 JCW Grand Prix models in the United States to buyers who have already ordered them as part of the ceremonies on Saturday …