When General Motors Corp. (NYSE: GM) reports quarterly earnings tomorrow, the Detroit automaker is expected to post a steep loss in profit due to sales of SUVs and large trucks dropping off a cliff. Gas prices have increased sharply and have caught GM off-guard as its margin-heavy SUV segment has been hit hard. The automaker has not shifted its product mix fast enough to compensate.

Curiously though, investor Kirk Kerkorian planted more seeds in the auto industry yesterday by increasing his stake in rival Ford Motor Co. (NYSE: F), upping his ownership of the company to 5.7% after Ford reported a surprising $100 million profit late last week. Kerkorian invested in GM a few years ago, but dumped his shares after GM rebuffed efforts to become a partner with France's Renault SA. Why would Kerkorian re-enter the auto market after years of turbulence and the highest gas prices in a generation, even with Ford's recent profit?

Kerkorian may like what he sees in Ford CEO Alan Mulally. Mulally has said that Ford is re-sizing its capacity output to fit market conditions in terms of demand. This includes production capacity as well as product mix, which is the flexible golden ticket any automaker needs in a world of constantly changing variables. GM just hasn't gotten there, and it's hard to see if it will. GM lost $39 billion, although that amount was mostly due to tax changes not bad decision making. Will Kerkorian have success with Ford as his renewed interest in the auto sector picks back up? Ford will need it, as one quarter doesn't make a turnaround.