Apart from losing around 40kgs in weight, it will get a special rear diffuser, lowered suspension that's been tweaked and stiffened for better straight-line and cornering performance, as well as revised gear ratios to enhance top speed, which should approach 270km/h.
And the Spec C will also inherit the S402's 6-pot Brembo brake package and runflat Bridgestone rubber.
But our source suggests that power and torque will stay the same.