"Thomas J. Paladino Jr." wrote in message The Maule is almost more
on par with a Cessna Caravan, not a 182 or 172.

The Maule M-7 series is about the size of a C-172. It is a 4 seater. The
Caravan can have up to 14 + 2 seats.

Either way, I'll rephrase the question a bit; why are there not more small
turboprops available for GA, and why are they not standard accross more
models?

In general, turboprop engines don't match fuel consumption with piston
engines until over the 300 horsepower range. The metals required for a
durable, efficient turbine engine are expensive. If a manufacturer produced
a turbine such as you describe, airframe manufacturers would be clamoring
over each other to install them on their airframes. You don't see it
happening because such an engine doesn't exist (yet).

D.