 V6 is very peppy engine.  CONS:Driver's seat does not go back very far. I'm only 5'6" & I would like more leg room.  Since getting the car I have always noticed a humming noise whenever I'm accelerating & at all speeds, but especially between 40-45 mph. It has never impacted the performance of the car. I just took it into the dealer to address this sound. The dealer confirmed it IS a problem with the Rav4. They will be replacing the L side engine mount, rear engine mount  & L side drive axle damper. They said IF that doesn't do the trick it will have to get a new transmission!  What a surprise that was!  Thank goodness I took it in before the warranty expired! So be aware...and listen.