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Mass produced vs. unique vehicles?
Filmation had a panoramic shot of multiple Battle Rams and both their own large Attak Trak model and the toy-accurate one (in blue). The Sky Sled is also a common vehicle for both Eternos and Evil Warriors.
Wind Raiders: factory-produced, though apparently not in large numbers.
Rotons: common - pic related, and at least one Ladybird book (He-Man and the Asteroid of Doom).
Dragon Walker: prototype built by Man-At-Arms.
Road Ripper: prototype built by Man-At-Arms.
Stridor: prototype built by Man-At-Arms, Set free in Filmation ep "Origin of the Sorceress", but more must have been made, e.g. Night Stalker.
Bashasaurus: unique
Blaster Hawk: unique
Laser Bolt: ?
Talon Fighter: it's a fucking magic jet.
Land Shark: all signs point to "unique". Apparently there was no perceived need for a common evil ground vehicle to go against Battle Rams and Attak Traks.
Spydor: ?
Fright Fighter: unique - someone else correctly noted that it should be Tung Lashor's vehicle.