Have you ever tried buying a dual control for a Ferrari or Porsche, thought not. Do they even exist? Had a pupil who insisted on being taught in his/her own car, a Rolls Royce or Bentley, great for learning to parallel park. Reversing round the corner in a stretch limo at the tender age of 17. I would love to see an examiner's face when the test is conducted in an open top Alfa Romeo, but I'd really like to drive a car built before driving tests were necessary.