SIHO meaning in General ?

The Horizon is a compact hatchback that was designed by Chrysler Europe and was produced from 1978 to 1987 under the Chrysler, Simca, and Talbot nameplates. The successor of both the Simca 1100 and Hillman Avenger, the Horizon adopted a front-wheel drive, transverse-engine layout.

The model line was the first (and only) world car developed by Chrysler Corporation, who developed the American-market Dodge Omni/Plymouth Horizon in tandem, following the start of the Chrysler Europe project. While similar in appearance (for the Plymouth brand, sharing a nameplate), the Horizon would have substantial functional differences from its American counterpart.

Following the 1978 sale of Chrysler Europe to Peugeot, the Horizon was rebranded under the revived Talbot marque from 1979 onward. Alongside assembly in Chrysler Europe (later Peugeot) facilities in France and the United Kingdom, the Horizon was assembled by Saab in Finland and by Peugeot-Citroen in Spain.