Is the Cadillac STS-V the best Caddie--heck, the best AMERICAN lux/sport sedan out there? That's what the husband/wife writing team the Lienerts tried to answer in their review in the Detroit News. Review looks good with the Lienerts only have probs with the little details like lack of shift paddles and no AWD option. Otherwise, the STS-V worthy against the BMW M5 and Mercedes-Benz's AMG vehicles.Agree? Disagree?