Care to comment of shift speed of the R's DSG vs the E gear?
Speed of shift of the DSG in the R is vaguely similar to the egear in Corsa (at least without strapping up the PerformanceBox and measuring the times) but the means of execution is massively different.
The DSG manages quick shifts between cogs on the different clutches in an almost imperceivable manner. There's no great fanfare - just pull the + paddle and the engine note changes a few milliseconds later to give you an indication that the change has been executed. The gearbox, like the rest of the car, is pretty much devoid of drama and excitement - it just does what it says on the box without too much fuss.
The egear in Corsa seems to change in pretty similar times - perhaps a small fraction slower if anything but not really noticeable on the seat-of-the-pants dyno. The difference is that without the luxury of gears on different clutches the egear performs fast changes in the same way you'd perform fast changes in a 3 pedal manual - stomp on clutch, whack gear lever into desired position, drop clutch. That's about as far from the subtle, smooth change of the DSG as you can imagine.
The overall effect is the same - minimal time between gears hence minimal drop in acceleration during the shift - but in a way the egear 'feels' faster because of the drama of the shift.
Of course if you put the egear in Sport (or heaven forbid the 'Normal' mode) the difference in shift times is plainly obvious - the egear is far slower in either of the less aggressive shift modes.