I keep hearing that this vehicle needs a bigger engine...don't agree. The 3 liter engine is fine 95-98% of the time. (If I lived in the middle of the Rocky Mountains I might lower that % but most of us don't!). The 6 speed transmission downshifts more than one is used to but you quickly learn to work with it. Even in 5th gear, engine speed is close to what many other cars are in their … "top gear". I bought this car because it's a full size sedan with a sensible engine size and I'm very happy with it. I love to cruise along at 70 MPH, 2000 RPM and get mileage that hangs around 30 mph...a whole lot better than my Lexus ES300!