Road Vehicles:
* Cars: Most passenger cars, from compact to luxury models.
* Trucks: Light trucks, pickup trucks, heavy-duty trucks, and semi-trailers.
* Motorcycles: A vast majority of motorcycles, from scooters to sport bikes.
* Buses: Many public and private buses, particularly older models.
* Construction Equipment: Excavators, bulldozers, loaders, and other heavy machinery.
Off-Road Vehicles:
* ATVs and UTVs: All-terrain vehicles and utility terrain vehicles.
* Tractors: Farm tractors and other agricultural equipment.
* Lawn Mowers: Gas-powered lawn mowers.
* Generators: Portable and stationary generators.
* Power Boats: Outboard motors and some inboard engines.
Other Vehicles:
* Airplanes: Small aircraft and some larger planes (though jets typically use jet engines).
* Helicopters: Some helicopters, especially older models.
* Ships: While most large ships use diesel engines, smaller boats may use ICEs.
* Military Vehicles: Tanks, armored personnel carriers, and other military equipment.
It's important to note that:
* The dominance of ICEs is being challenged by the increasing adoption of electric vehicles (EVs).
* Many vehicles are transitioning to hybrid powertrains, combining an ICE with an electric motor.
* Some types of vehicles, like high-performance sports cars, still primarily rely on ICEs for their power and performance.
While ICEs are gradually being phased out in some sectors due to environmental concerns, they continue to be a vital component of the transportation industry in many areas.