Hyundai Sonata GLS 2006 Used Automatic Gasoline The car, honestly, has excellent fuel economy. It needs some checks, and there are parts ready for installation, such as the rear stabilizer bar, pump, steering wheel. Its air conditioner is working but needs a check for leaks, needs pressing at a lathe, and a freon refill. That's all it needs. The car. The serious buyer will not be disappointed.