Honestly,
I wouldn't sweat it. There are many posts here on Prime of folks with significantly more miles and have no issues. As many have posted, these cars are put together like nothing else.
When mine rolled 100K, I remember the car did something that freaked me out. Just as I noticed 100,000, I grinned and thought, "This is nice! The car feels like it only has 10,000." Then at 100,001, the speedometer started to bounce all over the place. My next thought was "Crap!". After making it home, I checked on Prime and it turned out my Speed sensor had failed. After a quick replacement, all is sane again.
Continue to enjoy your car and don't think about the mileage. On these cars it doesn't seem to matter. In fact, I think the odometer merely quantifies how much the owner loves driving it.