Trevor Caraccia, a 23-year-old from Ypsilanti, squatted next to his glittering yellow '98 Mustang GT, shining the wheels. Caraccia's car is nothing like the brand-new cars on the main floor.

The Alvis Graber Super Coupe is one of the models featured in the Continuation Series A 103-year-old car company says it is making brand new vehicles using parts and blueprints from models ...