On 5 June 2000 Jon sells his car to Marco for R50 000. They agree that Jon will deliver the car to Marco on 20 June 2000. While he is delivering the car to Marco, another car drives through a red robot and collides with the car, totally destroying it. The car has already been paid for by Marco. Discuss the legal position of the parties. Would the situation have been different if the car had not been delivered on 20 June and on the 25th of June it was destroyed by lightning while parked outside Jon's house?