Many years too late...but......
I was the Marconi software engineer who replaced Nigel Skinner-Simpson in Oman in 1983.
The story that I heard about the flattened Toyota was roughly as follows:
There was this pilot stationed at Thumrait. He was due to leave and for some reason (I can't remember) he decided to drive up to Seeb rather than fly. Its a very long, quiet, mostly straight road across the desert.
He had to set off while two of his mates were still off flying. They decided that since they had missed his departure, they would fly after him.
When they caught up and saw his car, they decided to have some fun and buzz him. The first one did a very low pass, the guy then looks in his rear-view mirror and finds he is looking straight into the eyes of the second pilot. He throws himself down onto the passenger seat and THUMP, the roof gets lowered. He can't sit up so he brakes and coasts to a stop.
The Jag pilots assume that they have killed their mate, so they land on the road and dash to the car. Where they can hear some swearing from inside. They get the door open and out he climbs, unhurt.
The Jag tail pipes where also rather bashed.
I heard this from someone at the BAe mess on MAM base in 1983/4.
But did you here the one about the Jag pilot who passed the Yank who was demonstrating his low-flying skills along the runway at Thumrait. He passed underneath him. One rather annoyed American.
Ah, happy days.