This was a roomy 2+2 coupe with a modern and comfortable interior. Underneath, it was similar to the Type 14, although the platform of the Volkswagen Variant was used rather than that of the Volkswagen Beetle. The main difference was the engine: the Type 145 TC was fitted with the 1,584 cc flat-four air-cooled boxer unit from the Type 3 instead of the 1,192 cc unit of the Type 14. The car produced at 4,600 rpm and had a top speed of , compared to the and top speed of the Type 14 Karmann Ghia.