The standard features of the Chevrolet Cobalt Base include Ecotec 2.2L I-4 155HP engine, 5-speed manual transmission with overdrive, curtain 1st and 2nd row overhead airbags, airbag occupancy sensor, 15" steel wheels, XM AM/FM/Satellite in-dash mounted single CD MP3 decoder, with 4 speakers, radio with speed sensitive volume, internet access, tracker system, tilt steering wheel, and chrome interior accents.