Cars will only get more efficient, not slower. The only sad thing is, cars will not make that awsome sound we are so used to from gasoline engines.

Exactly. Most people don't car what engine the car has, just as long as it has a "good badge" on it, can merge on the highway OK, and doesn't cost them a fortune to fill up at the gas station. As long as it looks good is all that matters.

heck yeah!

I see a 2015 Infiniti G40 AMG in the future.

or Brabus Infiniti G40.

All I have to say is that I'm glad I got into a G before they switched to Merc powerplants. It is hard to imagine the value proposition of an Infiniti increasing with Mercedes motors under the hood and the distinctive tone of Nissan's VQ engine was a big part of this car's appeal. I can see how this makes good business sense on paper, but I would be skeptical about the odds in practice.

This doesn't surprise me at all. I wondered how Infiniti would handle the new fuel economy standards and this is it. Most Infinitis don't exactly sip fuel. We'll just have to wait and see if the G loses it's personality in all of this. Glad I have mine for now.

Sure a V6 will give you more power. Yet the Audi A4 feels fairly good, the torque is just a hair less than the G37. Had a 2007 A4 quattro and was very pleased with it... If you check 0 to 30 mph (i.e. most of your traffic) you'll see very little difference between the 4 cilinder plant in Audi and the 6 cilinder in G37. That being said, I don't know about the Merc 4 cilinder, never drove one. The 6 cilinder in C300 does feel quite whimpy ... Wait and see...