What you're looking at is former F1 driver Robert Kubica testing out the damper setup on his Ford Fiesta WRC car before the upcoming Monte Carlo Rally. I have watched this a hundred times and I still can't get over the speed.

Maybe it's not the speed — maybe it's the commitment. Kubica is flat out over this undulating mountain road.

Here's the first view of him on this stretch.

And here's the second.

Check out for a longer rumination on what you're seeing going on here on a technical level.

This is why top-spec rally cars spend five figures per corner on dampers alone.