saxat....
"Manufacturers use many different names to describe their implementation of the various types of variable valve timing systems. These names include:
AVCS (Subaru)
AVLS (Subaru)
CPS (Proton)
CVTCS (Nissan, Infiniti)
CVVT (Alfa Romeo, Citroën, Geely, Hyundai, Iran Khodro, Kia, Peugeot, Renault, Volvo)
DCVCP - dual continuous variable cam phasing (General Motors)
DVVT (Daihatsu) (Perodua)
MIVEC (Mitsubishi)
MultiAir (Fiat)
N-VCT (Nissan)
S-VT (Mazda)
Ti-VCT (Ford)
VANOS (BMW)
VarioCam (Porsche)
VCT (Ford, Yamaha)
VTEC (Honda, Acura)
VVC (MG Rover)
VVL (Nissan)
Valvelift (Audi)
VVEL (Nissan, Infiniti)
VVT (Chrysler, General Motors, Proton, Suzuki, Volkswagen Group)
VVT-i (Toyota, Lexus)
VTVT (Hyundai, Kia)"