It's nothing like saying "why would you hot your engine up". That's exactly my point. Plenty of people have actually achieved more power/modded their cars because: a) it's within the budget of the normal person, and b) it's NOT a massive engineering feat It's true that bigger, more expensive projects have been undertaken with making huge power etc, but even then there's a realistic goal/endgame for all your trouble and expense. The same can't simply be said of turning a RWD XR6T into an AWD version. It's certainly not impossible, but it WOULD be disproportionately expensive and time consuming unlike modding these cars for power. So much so, that again, no one's ever bothered. They put the rear IRS of a GTR into the rear of their Turbo ute, so still RWD only. In fact, it's a topic worth searching out, because I remember the final sentiment from Simon himself was along the lines of 'impressive technical feat of engineering, but not really worth the time and effort in the end'.