After driving my car for 1800km.
Here's the review
Fuel consumption within city is 11,12,13 km/l, fluctuates according to traffic conditions.
Fuel consumption on highway is 15-17km/l, haven't tested on M2, but for sure It will give better fuel consumption there due to cvt and cruise.
Driving on D feels much sportier and economical as compare to driving on M(tiptronic). M mode gives a little delay, but D model is damn fast.
Rpm stays between 5300-5900 on full throttle. I can't drive my old gli anymore coz I'm in love with this car <3
Try not to push it hard, it will suck petrol. If you will are gonna economically it will sniff petrol 