Both done on a long driveway of a friend of mine. It is between two small lifestyle blocks and the driveway is very long and basically straight. It is slightly uphill, probably enough of a gradient to stop a truck from accelerating, but nothing like the bombay hills
The first vid is mostly in 4th gear, with a bit of 5th towards the end, and the second vid is mostly 3rd gear, and a change to 4th just at the end.
Hope you like Led Zep as well.