This, he suggests, will give car designers total freedom of form and material.
As an example of the kind of vehicles we might be travelling in one day, Wilcox is building a stained-glass car with a bed inside, which people can relax in as they are transported to wherever they need to go.
The shell of Wilcox's car is being made by soldering pieces of cut glass onto a wooden frame.
"We're using the 'copper foil' technique, which is the same way they make Tiffany lamps," he explains. "It's a really meticulous process and there's a lot of improvisation going on."
Wilcox enlisted the help of Middlesex University's product design department to make the wooden frame that supports the glass.