The standard features of the Chevrolet HHR LS include 2.2L I-4 155HP engine, 5-speed manual transmission with overdrive, 4-wheel anti-lock brakes (ABS), curtain 1st and 2nd row overhead airbags, airbag childseat sensor, air conditioning, 16" steel wheels, cruise control, ABS and driveline traction control, StabiliTrak stability control, and power mirrors.