The Australian version 5 STi's had 'normal' struts (same as JDM version IV), the Aus Version VI was the first to have inverted struts.

To be fair you can't really compare the suspension on a GC V's 06+ STi - the late suspension is carrying 1480Kg (Gc is 1270kg).

The 07 STI has the new double-wishbone rear suspension that should provide better ride and handling precision than the old MacPherson struts. The 07 STI also has Steel front control arms V's alloy on all previous STi's.

You're trying to compare 2 systems with an 18 year design gap between them.

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