V-8 power with V-6 fuel economy? That’s what Lincoln says its EcoBoost engine will get you in the 2010 Lincoln MKS. Cars.com reviewer Mike Hanley got behind the wheel of the EcoBoost model to find out if this held true. Even if it did, would it be worth the extra $5,000 tacked on to the price tag? Hanley puts the EcoBoost MKS to the test and compares it to its very stiff competition.