The Flex offers "self-park", it's called Park Assist. If you have been in both of these vehicles, the space is completely different. The Lincoln is swoopy and infringes on the 3rd row real-estate. The Flex is (granted) more or less a box so the dimensions are better laid out. I know I compared both carefully and in detail.
I just purchased a Limited Flex with Ecoboost. I ordered it on Jan 9 and I have been told not to expect it before Mid-April. Yea that sucks, Ford is doing soemthing right, obviously, just not with the delivery times. The Flex is as luxurious as the MKT at a signficant price differential...