Here is the 2010 Toyota Mark-X RWD Sports Sedan which is a real wheel drive sporty vehicle launched in Japan. The 2010 Toyota Mark-X luxury sedan was first showed at the 41st Tokyo Automobile show last week. The Toyota Mark-X sedan is designed based on the Lexus GS architecture and will be available in two versions - one powered by powered by a 2.5-liter V6 that produces 203 horsepower and the other powered by the larger 3.5-liter V6 offering 315 horsepower.