Some companies began to introduce less expensive designs, intending them to be affordable for the middle class.

The Tatra 12 followed the same principles, which had the differential and final drive with swing half-axles mounted at the rear of the backbone tube.

The wooden pieces were merely touching each other and its ends were coated in a buffer material (often leather).

This type of bodywork wasn't totally firm, but it allowed natural shifts which occur as the wood gets dry or wet.

Such shifts made it impossible for use of metal sheets, therefore the exterior was covered in artificial leather.

The bodywork itself was built in a manner similar to the aeroplane design of the era - from plywood; only the front bonnet was made from aluminium plate.

To allow easier re-fuelling the fuel tank with capacity of 60 L (16 US gal) was placed behind the rear seats.

To its advantage the Tatra 12 didn't need stops for change of coolant (as the engine was air-cooled).

The Targa Florio cars took part in many races, i.e. in Stuttgart, Ecce Homo, or the Great Russian contest of reliability.