No point having a Fairmont Ghia Turbo when the Force 6 is available. It costs slightly more than what a Fairmont Ghia Turbo would have cost (use the Turbo Territory Ghia as a guide at $65k+ORC), but has much better performance equipment levels (Bembro's, 19" wheels, body kit etc). The Force 6 should hold much better reasale being an FPV than the traditionally dismal used value performance of the Fairmonts.
For now you'll have to be content with optioning up the luxury pack on a manual or auto XR6T. Either that or get a VE 6.0 Calais V if you don't mine getting a Holden.
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Also for the record, the BF2 XR6T base engine is identical to the F6/Force 6 units. The extra power comes from the software and bolt on differences.