Cargo space specs are still not available for the Trailblazer. What is, are these pictures from Chevrolet that show real world examples of what's possible. As someone that owned a Trax, this is an upgrade over its 48.4 cu.ft of cargo space with the second-row seats folded flat. With the front passenger seat folded down I'm sure 9-foot long objects (Trax does 8 ft) can fit. Once specs are released it looks like we'll see around 55 cu.ft of cargo space.