The 2006 Mazdaspeed Atenza (known as Mazdaspeed 6 in North America and Mazda6 MPS in Europe and Australia) is a high-performance version of the Mazda6. It features a turbocharged version of the 2.3 L MZR I4 which produces 272 PS (200 kW) (European version is detuned to 260 PS (191 kW); the North American version, at 274 hp (204 kW), is more powerful). This 2.3 L DISI turbocharged engine features direct fuel injection and conforms to the new Euro 5 emissions standards. It has a revised front fascia with a raised hood, a 6-speed transmission, and all wheel drive. The all wheel drive system uses Mazda's Active Torque Split computer-based control which routes up to 50% of the power to the rear wheels depending on driving conditions.
Originally scheduled to be launched in June 2005, the Mazdaspeed Atenza was delayed until November. In North America, the Mazdaspeed6 comes in two trim levels; the Sport trim with cloth interior and standard key entry and ignition; and the Grand Touring trim with leather interior, keyless entry/ignition, and an optional DVD navigation. Automatic climate control is standard, as is a 200 W Bose stereo system featuring 7 speakers and a 9 in. subwoofer in addition to an in-dash 6-disc CD changer. A sunroof with moonroof feature is optional on the Grand Touring trim.
Source: Mazda Press Release