We've just got a new car (not anything fancy by any means), but still, one of the first things I did was deactivate the keyless opening. We just use the fob button to open it. It's quite cool though as it has separate 'approach' and 'depart' locking settings, so we can still have it lock automatically when walking away.
I'm presuming that these 'luxury' motors don't have an option to deactivate the system. Daft.