Nothing.
Never a heating/cooling problem!
Excellent gas mileage
Car accelerates like a Porsche
Driver's seat is a bit weak
Low to the ground
30 mpg with AC on
Oil changes only!
I just purchased a 2002 hyundai elantra gls with 8500 miles and this car is great. just the gas mileage could be a bit better it states the engine is a 4 cylinder, but drives like a 6 cylinder. the drivers seat is extremely uncomfortable and hard to adjust to. overall the car is great.