 We have been very disappointed with the quality of 2017 Toyota Sienna Van Powertrain and its workmanship. Van has just 1000 miles on it and it runs like piece of junk. There is no power and sometimes it becomes very risky on the road when it start losing its power. Transmission sucks and it's really hazard for life sometimes when you drive on speedy road.We raised the concern with Round Rock Toyota and service the van three time since bought within two months. They have no answer to the problem though they accepted that car has some major problem. Service dept. shared Toyota Customer service number and after 4 weeks of communication on paper Toyota Customer service said they can't helpCAUTION: I SUGGEST ALL THE NEW BUYERS OF TOYOTA CARs TO BE CAREFUL AS IT'S A HAZARD TO YOUR LIFE AND WASTE OF MONEY TO BUY TOYOTA.