The best way to avoid a mob desperate to destroy your car and/or to get at you while you're in your vehicle is to buy the new...
Toyota Hedgehog
At the touch of a button, out pop the hedgehog spikes, which form a wonderful barrier to marauders. See them leap backwards to avoid being pricked. Watch as they weep, knowing that they cannot even approach without setting off the "move menacingly towards them" defence system. Drive off without anyone getting in the way.
Toyota Hedgehog - be sharp