The standard features of the Hyundai Sonata GLS include 2.4L I-4 175HP engine, 5-speed manual transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, curtain 1st and 2nd row overhead airbags, airbag occupancy sensor, air conditioning, 16" steel wheels, cruise control, ABS and driveline traction control, and a stability control.