A trunk hatch is a compartment that is always located at the back of the vehicle giving an easy access to the cargo area. The Buick Lacrosse Trunk or Hatch is the tool that allows access to the trunk compartment. The Buick Lacrosse carbon fiber trunk is fitted in either directly or is easily bolted onto the hatch or the trunk. These Buick Lacrosse trunks come are usually built with tail lights and are considered to be very heavy, thus many drivers these days tend to purchase the Buick Lacrosse aftermarket trunks that are made up of carbon fiber or fiberglass which is a lightweight hatch when compared to the factory trunks. The lightweight hatch is easily bolted on with the factory hatches and mounting points.