I was wondering what the highest mileage on an RC people have seen? Long term problems?

 

I doubt it's the highest, but I just hit about 135k with my 350 f sport. Other than 3 sets of brakes, it has been amazing. Just oil and tires otherwise.

 

2016 RC 200T F-Sport (8AR-FTS) with125K miles

Issues developed:
Water pump leak
Rear Diff leak
HVAC Servo (s) Failure (known issue accross other models)

Other minor developed nuisances like:
Door physical key issues
Door Skin bubbles due to adhesive failure
Premature front inner tire wear (common issue with other models)

IMO, it's still a very reliable car with issues only due to normal wear and tear of this type of car. However, the HVAC servo malfunction issue was really a huge disappointment for me especially when the warranty expired.
(8A888R-FTS(8AR-FTS(8AR-FTS

 

I have a 2016 RC 300 F Sport with 91k miles. It's been great. The only issue is I had to replace the water pump. Just regular maintenance besides that. This car is a gem.

 

I have a 2016 RC350 F Sport just shy of reaching 93k miles. Just changed both front lower control arm bushings. Regular maintenance per the owner's manual. Other than that, no issues at all.

 

had RC 350 AWD from 2015, in 10 years drove 240K miles until sold it last year, had replaced hood released cable and oxygen sensor during this time