I know you're looking for gas, but in diesel the Itasca Reyo/Winnebago Via are the same length as the shorter version of the Axis/Vega (25'6")--although they unfortunately carry a considerably higher MSRP:
Winnebago Class A Diesel Motorhomes, Coaches, RVs
The smallest class A I've come across is built in Germany and naturally sold only overseas, the
Dethleffs evan--something like 18' or less in length!
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