Titanium has long since been used in the motorsport world due to its high strength to weight ratio.  The aircraft industry is also another area where titanium has been a metal of choice.  If your an owner of a Porsche up to 1989, your Porsche is probably fitted with a closed ball seat type nut with a 14x1.5mm thread and 19mm AF.  Why not treat yourself and your Porsche to a set of titanium wheel nuts.  They look great, weigh less than half of a steel equivalent and have fantastic strength characteristics.  They also have a high resistance to corrosion and will stay looking good.  Channel P101tv are offering a set of of Titanium Wheel Nuts made from Gr5 Titanium.

Head over a take a look at their Porsche Titanium Wheel Nuts