Steve 
2004 Toyota Highlander SUV AWD 4dr SUV w/3rd Row (3.3L 6cyl 5A)
Solid As A Rock
 We have had our Highlander since it was new and run up 70k on it. So far so good. No major problems. I have only changed the oil and tires. We do have an AC problem with it getting warm as you turn corners or hit a bump. Its a common problem and you need to pull out the control panel and soder the wires back on. I will get around to it some time.  The gas mileage is fine for a midsize SUV, what do people expect when the buy the car? Highway driving will get you maybe 22 if you drive 65 otherwise its 19-20 mpg. Combined we average about 17.  The Highlander suffers from some wind and road noise and the back seat could use a little more leg room. I have found it to be a very capable car. 