Massive Vehicle Hack is a vehicle upgrade in Watch Dogs 2. It costs 6 Research Points, requires Key Data from Chinatown, and requires the previous Engine Override upgrade to be unlocked. This upgrade allows the player to, when on foot, create mayhem by hacking all vehicles in the area at once. While driving, the player can hack vehicles to distract drives and clear a path. It lasts for 10 secondès. This upgrade unlocks Botnet Savings: Vehicle Hacks.