Ford Motor Company (NYSE:F) has posted nearly 12% margins and General Motors Company (NYSE:GM) has posted 9.2% (excluding recall costs) for the second quarter while seasonally adjusted annual rates (SAAR) have passed 17 million, setting new highs for SAAR value. But Morgan Stanley analysts Adam Jonas, Ravi Shanker, and Paresh Jain argue that now is a good time to start selling major auto companies because these numbers could be borrowing from future demand. “We get asked about the possibility of 18, 19, even 20 million SAAR on a daily basis now… the US auto cycle has clearly moved from a…