Lincoln's site says the car does not control steering. I am assuming this is the "nudge" system where it nudges you back into the lane, but gives up after a while and it definitely doesn't do curves. I could be wrong as I am not a Lincoln expert.
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That was a bad pun
. I don't think its fair to describe people who like to eat at restaurants on a road trip as people who are lounging. There are conveniences to stopping. Especially with younger kids (infants/toddlers). Change of scenery, bathrooms, and a table to sit at can do wonders on a long road trip. Also, I don't love eating while driving. Even on autopilot.
I can envision roadtripping with 5 people in an MS as being tough due to space. Do you think you could do the 5 hour trip in winter with one stop in a 100D? I know the 90 pack has problems with degradation and is really a 78-80 kWh pack.