3.5L V6 SMPI DOHC. Look! Look! Look! Oh yeah! Stop clicking the mouse because this 2010 Toyota Highlander is the SUV you've been trying to find. It is nicely equipped with features such as 3.5L V6 SMPI DOHC. This Highlander has a great cockpit layout, with all the controls easy to find and right where you need them. J.D. Power and Associates gave the 2010 Highlander 4.5 out of 5 Power Circles for Overall Initial Quality Mechanical. SON BUENA GENTE!!!