Lexus debuted its dedicated hybrid, the 2010 HS 250h, at the 2009 Detroit auto show. The automaker plans for the vehicle to be the most affordable luxury hybrid on the market. If that distinction sounds like several contradictions in terms, Cars.com’s Joe Wiesenfelder explains why this may very well be a savvy move for Lexus, while also checking out backseat legroom, interior finish and other key components.