I know where your coming from.....BUT You can't compare this engine to the RB26DETT because it's more of a middle class engine as apposed to the RB26 which is prob the best Nissan engine out there(sure some will/might diagree) but to compare it would have to be the 5.0 V12 BMW motor. But then engine price comes into it!
It's just a pity for us Ausrtalians to have to fork out so mush dosh for a killa BMW ie: at least $120,000+ as aposed to the more affordable R34GTR(well for some people)
BMW have had a Turbo Desiel out in Germany for some time now, So i still think they know what they are doing! and as previously said they can't make it have more power than the M3 because M3 is "their" sport model. It's like the BA XR6T in test made more power than the V8, but because we are Australian the V8 had to come out with more power, so they detuned the XR6T's. Stupid really but hey what can we do......