Leaked: Mustang to get 10-speed auto and MagneRide

Ford's 2017 facelift of the Mustang has been leaked online by fansite mustang6g.com ahead of the big American coupe's mid-life update sometime next year.

The leak, claimed to have come from within Ford's own dealer network, confirms last August's rumours that the MY2018 upgrade will introduce the advanced 10-speed automatic that has been developed jointly with General Motors.

No details have been given on how the Mustang improves with an additional four forward gears but both performance -- particularly in-gear acceleration -- and efficiency should be significantly better than the outgoing car.

As well as the extra gears, the dealer leak reveals that next year's Ford coupe will come with MagneRide dampers for both the EcoBoost and V8 models. In their firmest setting, they are claimed to improve damper performance to the level of the Shelby GT350.

An all-new sports exhaust will also be an option that introduces quad rear tailpipes.

The US dealer leak goes on to confirm the model updates will also introduce a new handling kit that's been specifically developed to improve track performance.

Called the 'Performance Package 2', the handling kit is thought to  come with the option of stiffer springs, high-performance dampers and larger brakes.

A 'Carbon Sport pack' is also part of the update, but it's not known if this option will introduce weight-saving body panels or simply offer a carbon finish around the dash.

Finally, the US dealer memo says the colours Orange Fury and Royal Crimson will be introduced to the Mustang range.

Of course, none of these upgrades have yet been confirmed for Australia, where Roush-developed Ford Performance supercharger kits are also yet to be released for the Mustang.