I'd rather retain the AWD during a passing manoeuvre when it is the most likely time you might really need it, especially on our crappy narrow WA roads with gravel verges, and when one is building up a fair head of steam passing B-doubles swaying all over the shop. Given the 200+ Kw in our cars, the extra 5-15% power is largely academic.
BTW, the AWD on these cars is heaps better than that daft weak arrangement on CRV's which only comes in when you need it and gives up quickly due to overheat when too much slip is incurred.
CP_e Standback & PNP; CP_e 3" SS Downpipe; Corksport FMIC with Top-mount K&N filter & OEM Ram CAI; Turbosmart BOV; Dashhawk; Prosport Boost Guage; JBR solid shift bushes; DBA 4000 Wiper-Slot front rotors; Hawk Ferro-Carbon HPS Street front brake pads (@ 69,000km); Sumitomo HTRZIII's in 225/45 x 18