Mini Rocket Pod
Five Mini Rockets in a single weapon mount for 5 bulk.
The Mini Rocket isn't much for damaging armor, but it can be absolutely lethal when applied to a breached car, inflicting critical hits on weapons, engines and characters. It's most accurate at very close range.
It's not much of a main weapon, but can be invaluable as a secondary weapon on a dogfighting car when you don't have room for anything else.