If September was bad, then October is shaping up to be a downright awful month for the Big 3. GM looks to be taking the biggest hit once again, with sales off about 26% from the same month last year. That leaves GM with only 20.5% of the US market - a 25-year low, and sinking mighty close to a certain Japanese manufacturer. An excuse frequently heard for GM's performance is that the employee-pricing deals dried-up the supply of '05 models, and sufficient quantities of '06 models are not currently available. If that indeed is the reason, then it'd be one of the more ironic moments in modern corporate history, in that it's just a bit unexpected that a manufacturer that so often struggles with overcapacity issues now faces a lack of inventory. Of course, there's likely much more to the story than that.