The “family sedan” may not be very exciting, but without midsized sales auto makers would be in a pickle. Ponder this: the five best-selling midsized sedans in America accounted for 1.3 million of the 12.8 million vehicles sold in 2011. With numbers like that, it’s important to get your mass-market people mover right. This means competitive fuel economy, a low base price and swipe as much tech from your luxury brand as possible. Either that or just wear a Nissan badge on the front. Say what? The last generation Altima was the second best-selling car despite being long in the tooth and filled with Chrysler quality plastics. That made me ask an important question: Is the fifth-generation Altima any good, or is it selling well (now in third place thanks to the new Accord and Nissan’s model change over) just because it has a Nissan logo on the front?