If you would want to try something a little more challenging; You might try crossing this Bronco kit with the Tamiya Kommandeurwagon to create Rommel's Kfz. 21 command car.

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Below is the old Italeri Horch chassis, fenders and bonnet crossed with the Tamiya Kommandeurwagon cabriolet body.

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The Kommandeurwagon body had to be shortened a bit right in the area of the rear edge of the back doors to fit the standard Horch frame. As you can see, to fit the shorter wheelbase Horch the curve of the rear fender actually has to cut into the rear door.
Purely by accident, the standard Kommanderuwagon cloth top fit the new Horch perfectly. That I cannot explain. It seems like it would have been too long????
(I took artistic license in adding the rear mounted spare tire. Normally it would be stored, laying flat, in the boot.)