Though it's subtle, Nissan's redesign of the Altima — its most popular model and the sixth-best-selling car in the U.S. last year — is significant, which is nothing less than what was needed in the intensely competitive midsize sedan segment. There's not a deal breaker in the Altima for us, which makes it easy to recommend if you're shopping for a car to satisfy your split selves — the part of you that needs a responsible family sedan, along with the selfish part that wants an entertaining, sporty car.