This is a neat little (1/28) motorized kit made by Nitto (kit nr. 664, also released as kit nr. 14056).
The kit consists of a one-piece body molded in green, a detailed interior and a fairly simple floorpan all molded in black and a single clear window tub.
The front wheels steer, the electric motor is hidden below a luggage cover in the rear of the car and a single AA-size battery is hidden in the nose.
A set of generic sponsor decals is included.
Below is an image from the 1979 Nitto catalog showing a completed model.
Despite the box claiming to contain a 1/25 scale kit, inside you'll find the 1/28 scale Nitto kit.
The kit is identical to the Nitto release, but no electric parts nor decals are included in the Entex box.
This is the Nitto kit, rereleased in the late 90ies by the Taiwanese Blue Tank toy company.
The kit is identical to the Nitto release but does not include any decals.
This is the Nitto kit, rereleased in 2005 by the Taiwanese HR toy company.
The kit is identical to the Blue Tank release but this time a set of generic sponsor decals is included.