Please can you NOT publish ads for people wanting to distroy our aviation heritage by fitting rare aero engines to cars and motorcycles. They are not suitable, means planes are likely to be grounded for want of a suitable engine and push the price of core engines ever higher by the astronomic prices the idiot car people are willing to pay. Why do they not just build replicas and leave the original engines to be used in aviation. I recently was out bid by a vast amount on a pair of vintage Walter Mikron engines needed for spares or rebuild to keep aircraft flying by a guy wanting to butcher them to fit in a motorcycle.