Why have 250-300bhp that you can't use on the road in your zed compared to a 68bhp 1.0 Kia Picanto, it even has back seats!
All arguments against super/hyper cars are null and void, simply because they're pretty much worth every penny.
Have you ever looked at a 458 Ferrari inside and out? I don't mean pictures, I mean the real thing. Now compare that to a 360 which you can buy for about 35k second hand now or even a 430 which can be had for about 60k and there is no comparison. The 458 is worth every penny of the 200k for the luxury and styling alone, not to mention the chassis, suspension and engine.
If I bout a brand new 30k 370Z and stuck a ridiculous amount of time and money into it, say about 40-50k for forged engine, twin turbo, amuse kit etc etc, it would looks the dogs danglies, but I would have a much warmer, fuzzier feeling inside every time I look out my window or drive to shops in my brand spanking GTR/DB9/911 etc etc.
So yes, you can make a faster car for less money, you can make a better handling car for less money, but you'll never make a BETTER car for the money