27th Apr 2017, 16:39

LOL, the Roadrunner and GTX were both Plymouths.

28th Apr 2017, 03:56

Dodge and Plymouth were targeted at the same portion of the market, with the differences being trim levels and sheet metal, excluding very few exceptions. There is no reason the Horizon could not have been a trim level of the Omni; it would not have been inconsistent with the Dodge brand. The same could be said for any and all of your favorite Mopar muscle cars.