Like I said before, VTi and VTi Oriel are trim levels. Vajih quoted the Honda website saying that VTi isn't a trim level, rather i-VTEC and VTi Oriel are the trim levels.
We're not discussing technologies here. There's just a confusion about the trims available in Honda and what they're called that's all.
And how can you say VVT-i isn't as effective as i-VTEC? Because practically speaking, Corollas have always been more fuel efficient than Civics. (1.8 versions)
Another thing: If 1ZZ-Fe and 2ZR-Fe both have 140 hp, what's the difference between the two? Exhaust manifold, dual vvti or what?