I know my 200 series is a baby compared to everyone (2013 / 105K miles) but, i just completed a 7,708 mile road trip from VA to Utah and back across 4 weeks.
It pushed through a tornado and hail while driving through Kansas, 50 degree temperature changes going through mountains, washboard roads / trails (Gemini, Long Canyon, Arches, Shafer Trail) in 110 degree heat, consistently driving 85-100 mph on the highway with constant gear-braking swerving through mountain roads, plus withstanding another tornado on the way home in Missouri - we went approximately 350 miles every 3-4 days.
Mind you, we made it to Utah in 2 days (2 18-hour drives) and made it back to VA in 3 days (1 18 hour day).
It never hesitated and is smoother than ever - she'll be getting an oil change, tire rotation, switching out the transmission fluid and changing the engine / cabin filter (preventative maintenance given all the trails we did) next week.
Let me know if there's anything else I should consider!
The 200 series is an absolute monster and I look forward to hitting the 414K mark as well!