just replaced waterpump at 180k $1100 at dealership(included one corroded coil from waterpump leak), 3 bad coils at 150k $800 at local goodyear repair shop(replaced all 8), vehicle has only one alternator replaced, still on original airbags, but had compressor replaced at 120k for about $600 at dealer, i need to check brakes more often(yearly) last time new brakes and rotors cost me $400 at local shop, my wifes lx 470 hasn't need brakes in last 3 years! as far as tires goodyear tires are the worst i should have bought the michelin cross like i had on them before, they were virtually maintenance free, every other week one of these goodyears is low,overall i love my navi and when we go on long trips we take it, and not the lx 470, because it has more room in it, even though the lx has a smoother ride, or atleast until i change out the airbags in the navi...any body have anything i should watch for?