List of automobile engines
- Flat-six engine or Horizontally opposed-six or Boxer engine
- Flat-twelve engine
- Inline-twin engine or Straight-two engine or Vertical-twin or Parallel-twin
- Inline-three engine or Straight-three engine or L3
- Inline-four engine or Straight-four engine or Slant four or L4
- Inline-five engine or Straight-five engine
- Inline-six engine or Straight-six engine or Slant six or L6
- Inline-eight engine or Straight-eight engine
- V2 engine or V-twin engine
- V6 engine
- V8 engine
- V10 engine
- V12 engine
- W12 engine
- W16 engine