Hi, new here...just got my SEL 3/21. Mine was built in mid-February, also, and I am experiencing the same offset/bias nav problems others have cited. As far as I know, mine has the 3.5.1 (see update below) version of software, which is not the current version and not the version in the car I test-drove. In the test-drive car, there were two noticeable differences: outside temperature displayed alongside clock in 8-inch screen, and a really useful display depicting the instantaneous energy flow among the gas tank, HV battery, engine, electric motor and generator. And the nav system seemed to work well. Unfortunately for me, I didn't notice the difference until after I was driving the new car home. (Dealer had to swap for it.) If I had, I might have walked instead of buying. Neither the dealer nor Ford customer service can tell me when the newest version will be available for C-Max hybrids. BTW, I note that at least one contributor has said the 3.5.1 version would correct the problems I'm having with nav and MFT. Either it didn't, or I've been given bad info about which software I have! Update/correction: Syncmyride.com says my Sync version is Gen2 - v3.1.3. I am confused...is there a newer version 3.5.1, or is 3.5.1 an MFT version? Is there such a thing as an MFT "version"?