It’s a tricky proposition to slice into that perfect middle ground for luxury-car buyers who want plenty of room but don’t want the heft or associations of a minivan or large SUV. Lincoln is trying to do this with the 2010 MKT, a three-row crossover. Cars.com’s David Thomas shows you the ins and outs of the MKT in this video and explains why you might want to spring for the EcoBoost engine.