It was not an interurban conversion - the LO&S built it that way. IIRC off the top of my head, the LO&S quit about 1920. The gas car was sold and eventually was standard-gauged and wound up on the Grasse River Ry. in New York. I think that's where the Strasburg got her from. You can charter the car for a small group fan trip down the Paradise and back.
Lee - I visited Strasburg in November '16 and they were running regular excursions on this in addition to running the steam engine. I signed up for the shop tour that day and was the only one who showed up. Got a personal 2.5 hour tour. It was awesome!