by James Kraus

1968 BMW 2800CS riding on unusually elegant alloy wheels featuring a polished chrome centre cap discreetly concealing the mounting lugs. Visible fasteners on a contemporary automobile are generally considered to represent a lack of refinement, yet seem to be embraced when they appear on otherwise highly stylized wheels. These were produced for BMW in Italy by FPS (Foundry Pedrini Siena).
Today, alloy wheels are all but ubiquitous and are used by automobile manufacturers as a key styling feature, often used to differentiate model ranges and equipment specification. They started becoming popular with the general public in the 1980’s, but were in fact offered sporadically since 1924.
Previous to the development of the alloy wheel, wheels were formed of two pieces of pressed steel, the rim and the disc, either welded or riveted into a single unit. Or, they were fabricated of a steel or aluminium rim, connected to a centre hub by metal spokes. A transitional design was a hybrid utilizing a steel disc for strength and an aluminium rim for weight saving. Such a design was used by Porsche and Jaguar in the 1950’s. Another example was the Borrani Bimetal, used on several Italian sporting models.
Read the rest of this entry ››