Why Do Some Planes Have A Cabin, But Not Others.
The first one is a Q400 (Brand New, and No Cabin)
The second one is a 717 (Old and with a cabin) you can only see the cabin if you look closely. The planes that have cabins visible, are the C208, CitationX, and 717.
Maybe they wanted to do like passenger flights, where you could be a passenger in live, or something? A my ideas on why this is like this?