The Tau τ is a family of gasoline V8 engines produced by the Hyundai Motor Company.

4.6 Tau MPi[1] for the Genesis' 4.6L Tau V8 engine: Hyundai Motor Company has also shown a supercharged version of the 4.6 Tau MPi engine at 2008 SEMA show,[3] and later 2009 Chicago Auto Show.

This engine was equipped with a supercharger and cylinder deactivation technology to produce an estimated 460 hp (343 kW) while returning better fuel economy.

[7] The Tau V8 received the award due to the engine's "velvety power delivery, competitive performance, and attainable price-- all of which epitomize the Korean auto maker's drive for world-class engineering", as quoted by Forbes.

This was Hyundai Motor Co. Ltd. first appearance on Ward's 10 Best Engines list.