Vibrating Toyota Prado VX

Purchased a toyota prado vx in Feb 2015. The vehicle has rattles, fitment issues, and the biggest concern is a vibration between 1200 rpms and 2000 rpms. Toyota claims that the vibration is normal??? On a luxury vehicle that costs almost R800K REALLY??? Google has numerous cases with exactly the same problem. Toyota knows about the vibration and yet failed to inform me prior to purchase, if I was informed by the sales person I would not have purchased.