Think of it like an "ultimate" or "premium" package. An LTZ trim typically included features like:
* Leather upholstery: Often heated and cooled front seats.
* Advanced infotainment system: Larger touchscreen, premium sound system, navigation.
* Safety features: More advanced driver-assistance technologies such as lane departure warning, blind-spot monitoring, adaptive cruise control.
* Exterior upgrades: Unique wheels, chrome accents.
The exact features varied slightly depending on the year and the specific Chevrolet model it was applied to. Chevrolet has since moved away from using the LTZ designation in their newer model lineups, often replacing it with other high-end trim levels like High Country or Premier.