The standard features of the Nissan Altima 2.5 S include 2.5L I-4 175HP engine, 6-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, power mirrors, and power windows.