The only body style for these Plymouth Horizons was the 5 door hatchback. I'm still amazed that they managed to fit 2 doors on each side of this car. Despite a 13 year lifetime, there was only one generation of this car with very few obvious changes.
The engines on these cars ranged from an I4 to a... well, I4. There were a few different varieties of this I4. One was made by Volkswagen, another by Peugeot. There was also a turbocharged I4 made available during certain years.
The odd thing about the Volkswagen engine and transmission sold in some Plymouth Horizons is the fact that these cars were built to compete with the Volkswagen Rabbit.
These cars were initially criticized by Consumer Reports after a test showed that they lost control easily. In a rare show of of support for an auto company in struggling times, various other car magazines test the Horizon and found that they were actually quite easy to control. They determined that Consumer Reports had gone too far with their testing and were working beyond "real world" driving conditions.
The Plymouth Scamp was a 3 door version of the Horizon. Unlike the Dodge Omni, there was now GLH (or Goes Like Hell) version of the Horizon. There was also no Shelby modified version, which on the Omni was called the GLHS.
These cars were sold in fairly massive numbers, yet I'm surprised with how few of them I see on the road today. I guess the original owners tended to not take care of a car that costs them so little. You can find these Plymouth Horizons used on eBay for very low prices. There are also Plymouth Horizon parts listings.