"Trunk volume" refers to the amount of space available in the trunk of a car. It is a measurement of how much you can fit or store in the back compartment of the vehicle.
Sentences with «trunk volume»
What it loses in cabin space, though, it gains in trunk volume. (carbuzz.com)
Small - item storage bins and trunk volume make this class - competitive as a family car. (carprousa.com)
The Passat's trunk volume of 15.9 cubic feet is on the larger side for this class, though the differences aren't dramatic. (cars.com)