Back in the 70s, there were quite a few of what I would call first generation ARF planes made of vacuum formed ABS or vinyl. Most of these planes had covered foam wings (either thin ABS sheet or wood) with a formed sheet plastic fuselage and cowl. Some had internal wood structures ... some only had wood where necessary. Many of these planes flew very well but all seemed to suffer from short life as they became brittle in the sunlight and cracks started to form in places that were impossible to repair. Some common brands were Lanier, DuBro and Pilot. Yes, DuBro use to produce airplane kits as well as helicopters! Early Lanier ARFs had a very soft vinyl wing covering. There were quite a few other companies that dabbled in this same sort of construction (with variations) over the decades.

SIG had a line of kits (not ARFs) that were so called quick builts that had sheeted foam wings with a sort of internal wood crutch in the fuselage that had formed ABS sides that attached to give the scale appearing shape. Their kits included a 60 sized Chipmunk, P-51, Cessna 150 and 172 and a smaller QM racer among others. Most flew fairly well but they were on the heavy side. SIG was a big user of ABS in most of their kit line and should be credited for using ABS plastic sheeting that was quite thick and durable compared to the very thin offerings of some other companies.