Engines. If you love your car you’ve got to love its engine too, because without it your vehicle is going nowhere at all. Inside that engine you will find a whole host individual parts and components all working together in perfect harmony so that when you press the gas pedal, the vehicle will move.
That’s all well and good, provided that all the parts and components are happy and working together. When they start to fail though you can see this in reduced engine performance and perhaps even a complete breakdown.