I loved the concept behing the X2010, the way they threw the rulebook out of the window to make the fastest race car on the planet, but I think they just took the idea too far. The car is just too fast. It doesn't feel possible, even though I'm sure it is.
Maybe if PD and Red Bull had held back a bit, say, maybe if they didn't put the fan in, then the whole car might just feel a little more plausible. That might even have kept the car a little more slippery - I've always been bewildered that such a light and powerful car can keep so firmly planted on the track. It annoys me, that this 'raw, ultimate race car on the limits of technology' is so accessible.
I love the concept, but I don't like the execution. If only the designers had just held back enough for this car to feel actually within reach, and if they'd made it an absolute pig - a real challenge to drive at speed - then I'm sure I would have loved the car too.