To me, the 09 revision seemed very minor. Yes, the interior was redone and exterior massaged, but still very much like the 1st Gen IMO. It'll be interesting to see how they update it for 18. Hope they don't mess up the look too much.
What? Its a completely different car. Every body panel, and component is different, different engine, different transmission, the list goes on. How you manage to consider that "minor" is beyond my realm.
The days of seeing completely different cars generation to generation is pretty much over. We see it with the Camry, Civic, Accord, Mustang, escalade, etc. We've reached a point in automotive design where we have pretty much plateau'd. The car needs to have certain features to be a car, 4 wheels, a number of doors, up front it generally has an engine, the front has holes for a radiator and some lights, in the back there is access for storage, and lights for people behind you to see.
Motor trend had a very good video recently on this, their general conclusion was exactly the above, the days of generation to generation leaps are pretty much over, by and large the tech in automobiles has reached maturity, and from now on it's more a general process of refinement from generation to generation. Their great example was between the new s-class and the 7 series, they pointed out how neither car's new generation added anything substantial to the car aside from gimmicks in tech (they pointed out the ridiculous gesture control in the 7 series).