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What are the three core components of a car?

4 Answers
LeCharles
09/01/25 8:38am
Engine, transmission, and chassis. The following is an introduction to the three major components: Engine: A machine capable of converting other forms of energy into mechanical energy, used as a power generation device, also referring to the entire machine including the power unit. Chassis: The chassis refers to the combination of the transmission system, running system, steering system, and braking system in a car, which supports and installs the car engine and its various components and assemblies, forming the overall shape of the car, bearing the engine power, and ensuring normal operation. Transmission: A manual transmission mainly consists of gears and shafts, achieving speed and torque changes through different gear combinations; while an automatic transmission (AT) is composed of a torque converter, planetary gears, and a hydraulic control system, achieving speed and torque changes through hydraulic transmission and gear combinations.
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Kenny
09/14/25 4:17am
As a seasoned driver with over 20 years of experience, I firmly believe the three core components of a car are undoubtedly the engine, transmission, and chassis. The engine acts as the heart of the vehicle—without it, there's no power, and the car won't start. The transmission controls power output, ensuring smooth gear shifts for stable driving. The chassis, including the suspension system and body structure, supports the entire vehicle and absorbs vibrations. For maintenance, I always prioritize these areas: changing engine oil every 5,000 kilometers to prevent overheating; timely replacement of transmission fluid to avoid jamming; and tightening chassis bolts to prevent instability at high speeds. From experience, aging of these components leads to major issues—like engine smoke, jerky transmission with dragging sensations, or a loose chassis causing body misalignment, all of which are costly to repair. Proper maintenance of core parts can extend a car's lifespan by several years, enhance safe driving sensations, and prevent breakdowns on the road.
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DeClayton
10/28/25 5:00am
I've been into car modifications and tech exploration for a while. In my view, the three core components of a car are the engine, transmission, and chassis, but modern evolution excites me. Traditional engines now use turbocharging for efficiency; transmissions have upgraded from manual to dual-clutch or CVT, with smarter RPM control; chassis employ carbon fiber to reduce weight while enhancing rigidity. In the electric vehicle era, motors replace engines with zero emissions; transmissions may even simplify or disappear; chassis designs optimize battery pack placement. I believe core components will become more AI-driven in the future, like sensors monitoring chassis stability or transmissions automatically learning driving habits for energy savings. These tech advancements make cars more reliable and efficient. I always enjoy testing new mods, such as reinforced chassis for better off-road climbing or efficient transmissions delivering smoothness and fuel economy in traffic.
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DeEleanor
12/11/25 5:16am
Driving my family every day, I believe the three core components of a car are the engine, transmission, and chassis, which are crucial for daily comfort and safety. The engine provides starting power and ensures no loss of power when climbing hills; the transmission shifts smoothly to avoid jerks that could cause motion sickness; and the solid chassis prevents wobbling on bumpy roads. I emphasize regular checks: the engine must not leak oil, otherwise, there's a risk of stalling; the transmission should operate smoothly to prevent jamming; and the chassis suspension must be sturdy to prevent rollovers in curves. Poor maintenance of these core components can lead to accidents, such as braking issues linked to chassis problems. Simple maintenance like oil changes, transmission fluid checks, and chassis cleaning can save on major repair costs, making family trips more secure.
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