The standard features of the Nissan Altima 2.5 S include 2.5L I-4 188hp engine, 2-speed Xtronic CVT transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, curtain 1st and 2nd row overhead airbags, rear side-impact airbag, driver and passenger knee airbag, airbag occupancy sensor, air conditioning, 16" steel wheels, cruise control, ABS and driveline traction control, electronic stability.