I saw this like-new die-cast ERTL truck in a second-hand store for an OK price. Not rare, made in Mexico about 1993, they had three of them for sale. It looks really cool but maybe too big to look right with 'traditional' O-gauge. It doesn't identify the scale on the box. I'm not real particular about exact scale with traditional O-gauge, but this truck is about 2-inches wide, as wide as O27 railroad cars.
Comments welcome from anyone who actually has one on a 'traditional' layout. I'm debating whether to get one.