1- Valley plate leak = around 1200 AUD from chatswood lexus
2. Rocker cover gasket leaks (becoming a problem)
3. Transmission service ( needs a proper flush not a drain refill)
4. Headers cracking (going after market PPE or novel will fix it and with more power)
thats about it for the major common problems
rest of the problems will be all user error or wear and tear
some cars are kept it good nick (caring onwers)
basicly if you go tightass on maintanence on a ISF it will show sooner or later
if you do everything properly using genuine parts its reliable as a camry other than the 4 points that i have pointed out