The 2006 Toyota Highlander Hybrid is available as a 4-door, 7-seat sport utility. Starting at $33,030, the 2006 Toyota Highlander Hybrid FWD is powered by a 3.3L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 33-mpg in the city and 28-mpg on the highway. The top of the line 2006ToyotaHighlander HybridLimited AWD , priced at $ 39,290 , is powered by a 3.3L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 31-mpg in the city and 27-mpg on the highway.