There is in fact a proposed passenger plus vehicle capsule:
The passenger plus vehicle version of the Hyperloop will depart as often as the passenger only version, but will accommodate 3 vehicles in addition to the passengers. [p12]
The passenger plus vehicle version of the Hyperloop capsule has an increased frontal area of 43 ft2 (4.0 m2
), not including any propulsion or suspension components. This accounts for enough width to fit a vehicle as large as the Tesla Model X. [p15]
Tubes would be bigger, and the system would cost more.
The passenger plus vehicle version of the Hyperloop will depart as often as the passenger only version, but will accommodate 3 vehicles in addition to the passengers. [p12]
The passenger plus vehicle version of the Hyperloop capsule has an increased frontal area of 43 ft2 (4.0 m2 ), not including any propulsion or suspension components. This accounts for enough width to fit a vehicle as large as the Tesla Model X. [p15]
Tubes would be bigger, and the system would cost more.