It might have a 2.3L engine pushing well above 300hp through a Revoknucle (read: proper, mechanical LSD) and it might only be a 3 door design.
And its up in the air if it ever comes to America.
The RevoKnuckle system is a specific type of MacPherson strut suspension design. Whether the mythical new Focus RS gets a mechanical limited slip differential is a separate issue. The 2013 Focus ST doesn't have either system.
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