A BMWs drive belt powers the accessories like the alternator, water pump(except some newer models), power steering pump, A/C compressor and the fan. It would make sense then, that reducing the amount of power these accessories draw from the engines output, the more power you have at the wheels.
Windows Portable Devices. Windows Portable Devices (WPD) is a driver technology that supports a wide range of portable devices such as mobile phones, digital cameras, and portable media players.
Hyder was acquired in September 2000 following a four-month takeover battle won by Western Power Distribution (WPD) - a subsidiary of the US utilities PPL and Southern Company. Southern Company later sold its interest in WPD to PPL.