For 2011 the Infiniti M receives an upgrade in name and mechanicals. From an external perspective the M will receive a facelift which includes a more aggressive facia and rear light treatment. The main upgrades that M enthusiasts have been waiting for is a mechanical upgrade and Infiniti does not fail these requests as the current generations 4.5L powerplant will be upgraded to displace 5.6L and power will be increased to the 400hp range. As additional information comes out, M56club.com will be here to report on upcoming design changes.