Linked from
The 14 pages that link to Spark-ignition engine, each with the reason it gives.
GasolineRelated: This is the main engine type designed to burn gasoline.
Combustion chamberRelated: Its chamber must support reliable flame propagation from the spark plug.
Wankel engineRelated: Most Wankel engines ignite their compressed mixture with spark plugs.
Nicolaus OttoRelated: Otto’s engine used spark ignition to begin combustion.