Top-Flite has their Piper Arrow. Fairly big plane, but smaller engine (.60 - .90). They have a scale cockpit/cabin.
http://www.top-flite.com/airplanes/topa0290.html
Also, Jack Stanford has some great civilian scale aircraft.
http://www.jsmodels.com
Mooney, Alon Aircoupe, Cesna Birddog, Rearwin Speedster, Piper Comanche, Twin Comanche...