Understand Car Engines in One Chart!

L3 engine ：

Reference Models: BMW B38A15C, Honda P10A3, Nissan KR15, etc. 

Comparable Models: MINI Cooper (1.5T), Ford Fiesta, etc. 

Advantages: Low cost, low fuel consumption, low emissions, and compact size 

Disadvantages: Jitter, nonlinear power output 

L4 engine ：

Reference Models: Volkswagen EA888, BMW B48, Honda L15B, etc. 

Comparable models: Audi A4, BMW 3 Series, Civic, Corolla, etc. 

Advantages: Compact design, low cost, and excellent balance—making it a well-rounded choice that balances affordability and performance. 

Disadvantages: The high-power versions produce noticeable noise and vibration. 

L5 engine ：

Reference Models: Audi EA855, Volvo B5204T8 

Reference Models: Audi RS3, certain older Volvo models (S60/V60), etc. 

Pros: Low noise and vibration, good power 

Cons: High fuel consumption, poor low-rpm torque; power can be matched by a 4-cylinder engine 

L6 engine ：

Reference Engine Models: BMW B58, Mercedes-Benz M256, Toyota 2JZ-GTE, etc. 

Reference Vehicle Models: BMW X3M, Mercedes-Benz S-Class, GLE, etc. 

Advantages: Powerful performance, simple layout, good stability 

Disadvantages: Bulky, significantly increased weight and cost. Energy Vehicle Beic

Flat-four engine ：

Reference Models: Subaru FB20, Porsche MA1.22, etc. 

Reference Vehicles: Subaru BRZ, Porsche 718, etc. 

Advantages: Extremely low center of gravity, excellent vibration damping, and improved handling stability. 

Disadvantages: Complex lubrication system, prone to oil consumption, and high maintenance costs. 

Flat-six engine ：

Reference Models: Porsche MA1.75, Subaru EZ36, etc. 

Reference Vehicle Models: Porsche 911 GT3, Subaru Outback Premium Edition, etc. 

Advantages: Runs as smoothly as a V12, has a distinctive exhaust note, and is well-suited for high-performance sports cars. 

Disadvantages: Complex design, difficult to maintain. 

V6 engine ：

Reference Models: Audi EA839, Nissan VR30DDTT, etc. 

Reference Vehicle Models: Audi S4, Infiniti Q50, etc. 

Advantages: Compact size, powerful and smooth performance; suitable for luxury and performance cars. 

Disadvantages: Complex design, difficult to repair, and relatively high cost. 

V8 engine ：

Reference Models: Mercedes-AMG M177/M178, BMW S63, etc. 

Reference Vehicles: Chevrolet Corvette, AMG GT, etc. 

Pros: Abundant power reserves, deep, rich exhaust note; ideal for top-tier performance cars. 

Cons: Bulky, high fuel consumption, and significantly higher maintenance costs.