when the ad first came on uk tv the final scene where he rides into the sunset was reversed so he was riding his right hand sidecar outfit on the right side of the road. took them a month or so to notice and then they flipped it over.
commonly this is a tip they use in adverts when theyre filming them. they film a couple of versions with the same left hand drive vehicle but with a set of continental plates and then a set or reversed uk plates, so they can film the same ad for multiple markets by sinply flipping the images over so the car is rh drive with plates to suit its country. i once saw one of the iirc fiat ads, the ones that ran for years with 'papa and nicole' featuring in a long series of adverts. in one some guy turns up to take the nicole character out on a date, turns up on a ducati twin and flips down its right side sidestand, nobody seemed to notice it at the time.