What did I do to my truck today - hmm, folded the roof down for the drive home.
Seriously though...
Late last year I bought these direct from the factory during their sale:

Those that have fitted different seats will know that the floor of the Frontera is not flat and one solution has been to fettle with the existing seat frame slider. In competition, I have to have a fixed seat, so I've sketched something out and had a chat with the guys at work - something like this should do the job:

It's probably a little overkill, but should give an extremly firm base to the seat. There might even be enough space under it for a second battery
Fixing the harnesses is another motorsport regulation I have been thinking about, and will have something like this fabbed up:

Fitting under the rear VX roll bar, it should give a firm achorage for the belts.
On a different note, this came through the post today:

...that should please my "winch biatch"
Lawrence