STONES IN THE RIVER
When a wreck clips a corner it knocks the kerbstones loose, and they go flying across the course. That part we love. What we didn't love was where some of them ended up: a stone could sail clear over the bank, land on the river and sit there, bobbing on nothing, for the rest of the race.

Now a stone that comes down in open water does what the cars already do. It hits with a splash, a ring and a little plume of spray, wallows on the surface for a beat, and then the river closes over it. It goes dark, slips under, and a last ripple spreads where it was.

It takes about a second from splash to gone, and the same goes for a stone that rolls off the bank and into the shallows. A car driving through the spot while it sinks doesn't kick it back out, because it isn't there to kick any more.

These are captures from the native Windows desktop build. Stones that land on tarmac, grass, sand or in the trees still bounce, roll, settle and stay for the race, and still get pinged when a car runs into them. Only the ones that hit water are different.