These two are just made for each other, with the halftrack widely employed to tow the artillery piece. Indeed, the Sd.Kfz.10 was conceived as a prime mover for small, towed antitank or antiaircraft guns.
The halftrack features a complete interior, as well as internal components like the engine and gearbox.
The field gun can be depicted hitched to the back of the halftrack, or it can be presented in firing mode.
Modelers can obtain this Combo Set more cheaply than having to buy them separately.