We all know that the planet went into recession in 2007 — and fell off the proverbial economic cliff on September 15, 2008, when Lehman Brothers was thrown into bankruptcy. The Dow dropped 500 points on that day — and then even further. Banks and businesses failed, and the gloom set in. Many markets slowed or froze. In the collector car market, both buyers and sellers went into hibernation for the remainder of 2008 and stayed in hibernation through 2009.