Alex,
Although I totally agree that SEO is changing, it is far from dead. As a matter of fact I saw an article or video not too long ago from Matt Cutts who works for Google on their web spam team in which he mentioned that BACKLINKS are still the most important factor in determining Google's fancy and secretive algorithm. That means that SEO has not changed as much as you think. We look at the results of what Google displays and think that their algorithm has completely changed, but instead they are displaying their content different.
The most important change is obviously the move towards local listings, which really should not affect you as much as you think. It should not remove your listing for these keywords. It will however make the difference between a dealer that gets SEO and one that does not, smaller and smaller ( manufacturers forcing a website vendor has also made this gap smaller).
Google is king in search and as long as nobody has a better way of performing search, they will stick with their guns...