Originally Posted by Integra96
Both IS motors need replacement. They're both nice and smooth, but aging designs that are a little short on power and fuel economy. A Lexus 3.5L V6 should have closer to 350 horsepower, direct injection, and eek out a few more miles per gallon.
The 2GR-FSE already has DI and the 8AT in the '14 should help gas mileage. I think they just need to add a turbo 6 and turbo 4 to the lineup leaving the 2GR-FSE as the midrange engine. Some people (typical Lexus buyers) like N/A and that 3.5 is a great N/A engine.