'Crash bomb' events are where the player is provided with a vehicle that has a Bavarium bomb on its rear end and tasked with driving it to the destination as fast as possible. Mugello Quipozza F with the bomb is considered to be one of the Easter Eggs in Just Cause 3. You can start a race to get a vehicle with your upgrades and not have to rebel drop it in. If the Nitrous Gear Mod has been unlocked, the provided vehicle will have it. These are usual checkpoint races for Planes and helicopters. List of challenges and tips for them Air Race

The in-game Rebel drop mentions races in the Windhund 4 info: ' Autostraad's Windhund 4 has earned a reputation in Medici's underground racing circuit as a turn-hugging speedster built for Drifting. The challenges also have leaderboards that work over the internet. Completing them in JC3 unlocks Gear Mods. Race challenges return in Just Cause 3 from the previous games.