Reinforced Cage II
"Reinforced Cage II" is a Driver skill in Dying Light.
Overview
A flat increase in health for the Buggy may seem great on paper though there are some problems with it. For starters, most enemies will die upon getting hit by it and the ones who don't will completely stop momentum, making them not ideal to hit. This can also allow it sustain pretty high drops, most of which can strand it in inescapable places, making also not ideal to drop from said places. Bombers can also be an annoyance though most of the times they don't come in high enough quantities to completely demolish the Buggy and again, it's the Virals they call upon that are dangerous.
In other words, damage to the Buggy is usually negligible and sources of said damage usually poses other threats completely irrelevant to its health. One of its best use is to kill Goons or Demolishers, the latter specifically if one wants to go for the Sweaty Palms? Achievement