The engine is not a dud, if you heard it you would know. Yes it requires to be pushed up in high revs HOWEVER, thats not because the engine is a dud its because of the exhaust. The car has 2 catalytic converters to process the emissions, hence why there isnt any co2 tax (well techinically its included in the price). If you were to take it to an exhaust shop and install 2 free flow exhausts you would boost this car's power by almost 30 kW. Also keep in mind that the car is designed to be green and sporty at the same time.
If you seriously think the engine is a dud and uses old technology I suggest you go read up. The engine revs up 8000rpm (give or take), its a 2 litre and has 4 cyclinders. It pushes out almost the same power as VW's 2.0.l TURBO CHARGED engine which red lines at about 6000rpm. Now if you remove toyota's environmental fittings and do the software mod this car's power will exceed a GTI. Furthermore the car is light so it has a very high kW/weight ratio and in terms of going fast, thats the most important aspect. Sure a GTI will probably smash this 86 in a drag race if both are factory standard, but in real racing terms (even drag) the GTI would stand no chance. Once you turbo charge the 86 (so it would be in the same class as the turbo charged VW) the 86 will smash that VW hands down. If you did some small mods you can bump the 86's power to about 230kW in a car thats less that 1.2 tons. Oh plus you will look so much cooler in a 86 than a GTI :P.
GTI = another idiot performing in a bread loaf looking car
86 = Wanted to perform like a GTI idiot, but used his brains to look cooler in a proper 2 door sports coupe that was cheaper.
So before you class the engineering of this vehicle use your brains first :P
I simply love the concept of the 86, this way people like me who can afford a porsche dont have to bust my head over running costs and can still be epic also toyota is far easier to play with modding than a porsche after warranty and motor plan and all that rubbish. I bet if this car had a BMW badge it would be sold out before it even came to SA ... and would have a 700k tag on it