A week before the official Detroit Auto Show announcement, an Internet site has posted leaked pictures of an official 2010 Insight brochure. The catch? The printed materials are from Belgium, so U.S. specs may differ slightly from those of the European market. Revealed in the documents are a fuel efficiency figure of 4.6 l/100 km (or 51 mpg) and emissions information. The mpg calculation is for overall combined use (slightly below the current Prius' figure) and the EPA estimate will likely fall in the 42-47 mpg range. Head over to the <a href="http://carscoop.blogspot.com/2009/01/2009-insight-hybrid-specs-slipped.html" target="new">CarScoop</a> blog to view the leaked brochure. <a href="http://www.insightcentral.net/community/viewtopic.php?f=5&t=8328">Discuss</a>.