Looking through the specs of the Mk 4 uplift and compared with the previous Mk4, there does not seem to be any difference in the 0-100km/h times, despite the increase in overall power. Both models (Ex & Advance) are quoting 9.6 secs, so what's happened to the 13HP increase?
Honda say there is an increase in Engine power, Drive motor power and Generator power, but we don't the effect in overall performance.
I suppose the fact that fuel consumption has not altered much, proves the point. (can't get something for nothing)
Having said that, if you compare the performance, with the average sports car of yesteryear, (eg MGB 85hp engine) with an average 0-100km/h time of 11.4 secs, then things have moved on a little.