Thor Vegas 24.1

We previously had a BornFree 27' class C which we retired after 18 years of age, so we are also used to MH engine noise. Our Vegas is very noisy. We complained to the dealership, they drove it and said at 45+mph the engine was very noisy. The inspected and found very little insulation in the doghouse or engine compartment and said that was the problem. I do intend to speak with Thor about it. But was wondering if this is typical of this model. Re sofa bed, yes, I do use the bedroom. But will probably have times when two large crates will occupy both beds and I will need to use the sofasleeper. Sometimes I travel alone sometimes not.