Rally cars are a lot different from normal race cars—they need to withstand all sorts of impacts while being driven. Unlike the smooth, even surface of a race track, a rally stage consists of dips, large rocks, and of course, jumps. That means rally cars need a whole bunch of upgrades to ensure nothing breaks on the move.
The nice folks at rally school put together a detailed video explaining all the upgrades and adjustments made to one of their stage cars to make sure it performs as intended on a closed gravel road at high speed.
Of course, like any competition car, a rally cars features a roll cage, upgraded suspension, and better brakes. But where it starts to branch off is in the parts needed to survive all the high-speed rough-road pounding. Beefier engine mounts make sure the block won't get shaken loose on bumpier sections of road, while a thick aluminum skidplate prevents sharp rocks from cutting a hole in the vulnerable oil pan. And as we've mentioned before, wheels and are a huge factor as well.
But there's a lot more to it, as Team O'Neil's Wyatt Knox explains. Watch for yourself and learn what makes a rally car tough enough to stand up to this kind of abuse.