Earl, With all the modern choices in paint, to get that old fashion lacquer look, use Urathane. First use an epoxy primer. It's a great sealer and eliminates all the problems of 50 years of non compatible finishes. Second, like others have said, good preparation makes a smooth finish. Third, use base/clear with lots of clear. Four or five good wet coats of clear. Fourth, wet SAND the clear, progressing to 1500 grit. Fifth, BUFF the clear. You'll get a flat surface with the lacquer look. Word of caution: This will lead to a much better finish than a 56 Buick had from the factory. But, it will stay pretty.