From Jayski:

One of the Manufacturers pulling out of NASCAR? an autoextremeist.com column is reporting that: It has come to our attention that serious discussions are taking place for the first time in the conference rooms of one domestic manufacturer in particular on a subject heretofore unthinkable in Detroit. The subject? Pulling out of NASCAR. Yes, it has been mentioned before, and I have predicted it for months now - ever since the announcement was made that Toyota would be buying its way into the France family circus - but we have confirmation that not only are the discussions taking place, they're so far down the road that a timetable for a pullout has been created, taking into account the end dates of existing contracts with individual racing teams currently aligned with this particular manufacturer. This Detroit manufacturer has decided that if it competes in motorsports in the future, it will only compete in three basic areas: 1. In production-based racing series that by rule and specification retain more than a passing resemblance to the cars they sell and the competitors they compete against in showrooms. 2. "Technical" efforts, in other words, engine programs for open-wheel and prototype racing series, but stopping short of Formula 1. And 3. Developing an effort to compete for the overall victory at Le Mans. Any other efforts, grass-roots racing, drag racing, etc., would be covered as the need and budget allow.(in part....see full article at autoextremeist.com, note: thr article doesn't say which manufacturer COULD be leaving [Chevy, Dodge, Ford] and this column will only be up a few days), Peter M. DeLorenzo, who owns and writes for the site has been on Speed Channel's Wind Tunnel a few times and tends to be controversal and a bit anti-NASCAR, however doesn't tend to just post stuff for the sake of posting it and has a lot of sources.(4-20-2006)

I think it's quite obvious who the manufacturer is that could be leaving NASCAR. After many of the teams complaining about the Charger, and some jumping ship to the Toyota camp, Dodge's days in the sport may be numbered.