|GP Thunder Extreme Prototype|
|Vehicle in Just Cause|
|Type||Armed off-road car|
|Weapons||Machine gun and rocket launcher|
|List of owners||The Agency|
It's based on the real world Hummer H3.
It's a pick-up type vehicle and looks like it was designed for off-roading.
It isn't the fastest car around but it's certainly the sturdiest and can withstand a lot of damage. It has four-wheel drive in lower speeds.
- Available from Heavy drop.
- At the Agency 4 "Camp Beachcomber" safehouse.
This vehicles weapons are hidden. They can be activated the same way that one would normally switch between different weapons in a helicopter. The Garret Paladin also has hidden weapons, but it only hs a machine gun. The GP Thunder has more firing range and the missile launcher makes it one of the best forms of a weapon or defense system in a liberation mission, or during Heat.
- Machine-guns. There's two, near the front lights.
- Missiles (shoots 1 at a time). The missile launcher is at the right front corner.