Abstract:Advisor was adopted to define structures and power trains of parallel plug in hybrid electric vehicles (PHEVs), and two PHEV models with different battery electric ranges of 20 km and 60 km were established. The consumer total ownership cost models were established on the basis of the purchase and use cost and compared with conventional vehicles (CVs) and conventional hybrid vehicles. Three scenarios were given about the basic, government subsidies and high oil price and an analysis was made of the PHEVs’ market competitiveness during 15 years nominal lifecycle. The results show that in basic scenario, PHEVs do not have competitiveness; with government subsidies, PHEVs will be competitive after 4~5 years’ running; in high oil price scenario with 10% annual growth rate, PHEVs will be competitive after 7~8 years.