I dunno, I think the 4cyl will sell. 11 out of 10 (yup, thats legit math) 4runners I see on the street are soccer moms. I would say their number one concern is getting their kids, and groceries from point A to point B in a nice looking vehicle. And now they have that option of doing it with an engine that screams 'more MPGs!'. I would honestly say you guys are underestimating and are the minority when it comes to the culture explosion of 'green'. There have even been countless threads on here where people talk like, 'if I drive 48.6mph on the freeway, with my front tires at 36psi and my rear at 37psi, and I change all my oils to synthetic I pick up an extra mpg'. Yeah, you guys talk that the v8 only looses 1-2mpg, but thats upwards of 40mpt. And that adds up in cost over the span of a year.
I was shocked when I found out the pimped out gov't H3's that my old recruiters used are 4cyl. He said that it didn't feel underpowered at all, although they feel it a little bit when towing the trailer. My old car was a 97 accord 4cyl. And when I went home for a few weeks for Christmas I was surprised that I had to basically keep it floored to maintain 80mph on the freeway. You get used to it, and the people who buy the 4cyl probably will too.
Don't get me wrong, when I saw the hp of the new 4cyl, I was like, '... oh man, really??', but I'll wait to see how it performs.
- edit - AND, what are the total sales this year for the 4runner??? Not great from what I remember seeing... and of those, what percentage were v8s?