Variable-displacement Technologies
- General Motors V8-6-4 (Cadillac)
- General Motors Cadillac Sixteen (Cadillac)
- General Motors Active Fuel Management
- DaimlerChrysler Multi-Displacement System (MDS) (for Chrysler)
- DaimlerChrysler Active Cylinder Control (ACC) (for Mercedes-Benz)
- Honda Variable Cylinder Management (VCM)
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