AMG C63 facelift will reportedly feature a new plug-in hybrid powertrain with a six-cylinder engine. It would replace the current turbocharged 2.0-liter four-cylinder that produces a combined 671 hp.

The rumors of what Mercedes-AMG plans to do with the C63 just won't quit, and this time Autocar is reporting that the turbocharged four-cylinder engine is being swapped out for a turbo inline-six.

The Mercedes-AMG C63 is a year away from death. Or a year away from at least partial redemption, depending on which reports you're reading today. While we try to figure out what exactly is going ...