Though it no longer looks like a Porsche, aficionados won't be fooled: The air-cooled engine still emits the classic growl.

The sole cause of abandonment was the overheating of the air-cooled engines.

'Wasp II,' made by Walton Motors, Limited, is a seven-cylinder radial, air-cooled engine, the cylinders having a bore of 4.75 inches and stroke 6.25 inches.