MSG (Micro-controller Solutions Group) is the largest business unit within Freescale and is currently the largest semiconductor supplier to the automotive industry. Modern cars use electronics to manage the engine for peak performance and to reduce emissions, and Freescale is the largest supplier of engine system microcontrollers in the world. Automotive safety systems such as anti-lock brakes and airbags also use microcontrollers and analog power management circuits from Freescale. Freescale also produces a range of integrated sensor products such as accelerometers and pressure sensors.