The RX450h+ plug-in hybrid electric vehicle (PHEV) elevates the regular RX hybrid to new heights. It’s quicker and quieter, and its relatively large battery pack gives a decent EPA-estimated 37 miles of electric driving for commuting or around-town errands. Once the plug-in battery is drained and the RX450h+ transitions to regular hybrid operation, it manages the same 34 mpg as the RX hybrid model. The result is an impressively high road-test score of 94, the best of all of the RXs we’ve tested.