Complex sentence: A number of body designs were tested in wind-tunnels; in the end the one proposed by František Kardas and fine-tuned by Vladimír Popelář and Josef Chalupa was chosen for production.
Split into simpler sentences: A number of body designs were tested in wind-tunnels. In the end the one proposed by František Kardas and fine-tuned by Vladimír Popelář and Josef Chalupa was chosen for production.