An incredibly rare '67 Chevrolet Corvette, which is rarer than the legendary L88, sold for $1.7 million, proving once again that collecting rare classic cars has no limits of cash flow.

A year ago, it looked as if the Mako Shark show car might pre-figure the '67 Corvette, and there were ... Instant Immortality engine, coded L88, for megalomaniacs only. The L88 also has the ...