To understand the essence of the i8 you cannot only look at its numbers, which are impressive enough, given the fact it's 0.3s quicker on 100km/h than a V10 E60 M5. A 3 cyl
It's also not sufficient to only sit once in it, to get it. Though interior feeling was one of the most important aspect for me whether to buy or not.
No, the essence of the i8 you can see in the reviews on Youtube, when experienced car reviewers like Joe Achilles and many others just doesn't stop to smile. I know why they do and that's the reason I'll keep it as long as possible.