
Packards in the 1930s and 1940s were the last word in luxury, refinement and mechanical excellence. Sadly, they went out of business in the late 1950s.

Jay Leno, comedian and talk show host and Ed Welburn, GM's veep of Global Design showcase EcoJet at SEMA's.It's the 650 hp (400 lb.-ft. of torque), bio-diesel monster supercar named the EcoJet. The mid-engined beast, originally sketched by Leno and Ed on the back of a napkin, shares design cues with everything from jet aircraft and Formular One racecars, and even, it would appear, the nose of a Cadillac STS. 

