Cadillac Supercar ‘Teed Up,’ Lutz Says

The jaw-dropping Cadillac Sixteen supercar concept unveiled by General Motors Corp. at the Detroit auto show in 2003 will not make it to production because the price tag would be too high, a company executive says.

But that does not mean Cadillac’s most expensive vehicle will remain the XLR roadster, which begins pricing at $75,835.

Cadillac Sixteen concept

“We’ve ...