GOLDSBORO, N.C. — When speaking of the excellent new crop of compact cars already in American showrooms or on the way later this year, seldom is the Subaru Impreza part of the discussion. That may be changing in the coming months with the introduction of an all-new, stylish and more fuel efficient Impreza. The redesigned 2012 Subaru is better looking, has more interior space and is more fuel efficient than its predecessor.