There is plenty of things to pick on when watching this movie such as the Moke appears to have towed a caravan up a hill with four people, the speedo reading at some stages of the chase, the squealing tyres on dirt. For me however the most obvious whoops is where the Moke switches to right hand drive for one scene.
The origianl clip on youTube that contained just the car chase is no longer available so you need to watch a poor quality(somebody recording it in th picture theatre) clip and advance to the 1hour 15minute mark. https://youtu.be/qyogEZZbhN0
There are other clips on youTube but they are from Citroen lovers who have edited out the Moke in the chase scenes!