Not much to tell really. Just tried to get maximum speed while sliding the car through the esses and on the last left turn the car failed to go left in fact it just kept 4w drifting to the right. I guess at that stage the front right tyre must have already fallen off the rim. (As an aside, that tyre was the only flat tyre on the car in the morning, and when I pumped it up, it had a bulge and 2 dimples so I guess it wasn't in prime condition.) So the car slid off and didn't stop at the edge of the road. The 2 outside tyres slid right off and dug in, and the car tipped over in slow motion. It tipped onto its side (maybe 100 degrees) and took a little while to settle and not roll onto its roof.
After it finished its battle with gravity, I checked my helmet was on, seatbelt still on, legs and arms still in the right places, no pain, all windows and rest of cabin intact. Was vaguely amazed. Took off seat belt. Stood up, Mike v a opened the passenger's door and I climbed out.
The boys and girls pushed the car off the track. The dent in the rh rear door popped itself out as I was looking at it. Started it with jumper leads because the battery was r**ted, engine was flooded, and drove off to a flat area to change the flat. They built these Toyotas as tough as Scotty's truck.