Hi Steve,
I had the same dilemma in deciding which engine to select. I currently have a MKC with a 2.3L Eco boost and love the power it has. I decided the only way to figure it out was to test drive each engine. We have a place in Scottsdale so when we were down we decided to see if we could test drive each vehicle. We went to Fiesta Lincoln in Mesa and they were very helpful in letting us test drive each vehicle. We felt after our test drive on the freeway and around town the 3.7L had adequate power. The 2.7 L GTDI engine was very nice but, after driving both the 3.7L engine provided adequate power for what we needed. I ordered a White Platinum/Cappuccino AWD Reserve and I am excited to get it. Please let me know if you have more questions.
Rick