I just don't see a conspiracy in this for the simple fact that it impacts nothing in the larger scheme of things. It was a local story that got a lot of attention because 20 people died. There are three degrees of separation from Ford and the limo owner but so what? What is the motive? What did it accomplish? I haven't heard anything on that front that makes any sense as part of a larger conspiracy.

I think it much more likely that there was a mechanical failure or an exhaust leak that incapacitated the driver. It's not even surprising that everyone involved died given the circumstances. High rate of speed, clip another vehicle and then plow head on into an embankment and some people are going to die even if they were wearing seat-belts. Given that it was a limo I'd wager that none of the passengers were which would increase the mortality rate substantially.

Unless there is something that I haven't seen yet this really doesn't seem like much of a conspiracy to me. Admittedly, I've only been paid it a small amount of attention.