I did previously own a FRED. It was a Serrano, 33ft and a few inches, and it had the MaxxForce 7 diesel with an Allison transmission. It was so easy to drive, the noise in the front seats was moderate, but not bad at all. The size made it a dream to drive and it got decent mileage. It was a bit underpowered, and if you ever got on a bad road.....you felt each and every bump.