What about rally car engines?

[LeEsther]

There are three mainstream types of rally car engines: V-series, inline, and horizontally opposed, each with distinct advantages. Advantages and disadvantages of mainstream rally car engines: V-type engine: Compact in height and length dimensions, providing more space for the passenger compartment. The downside is the necessity of using two cylinder heads, resulting in a more complex structure and higher costs. Inline engine: Simple cylinder block and crankshaft structure, lower manufacturing costs, high stability, good low-speed torque characteristics, low fuel consumption, and compact size. The disadvantage is relatively lower power output. Horizontally opposed engine: Low center of gravity, making it easier to achieve overall balance. Low vibration with excellent piston motion balance. Engine concept: It is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. For example, internal combustion engines typically convert chemical energy into mechanical energy. The term 'engine' can refer to both the power-generating device and the entire machine including the power unit.