It does seem that forces are in play that would severly impact the way cars will perform in the future. I have had the feeling before. With the impact of the post 1968 anti smog regs, and then fuel mileage requirements, there has been an increasing volume of affordable, beautiful high performance cars. My old E46 M3 not only out performed my 65 GTO 0-60, but had the grace, beauty and handling at a very affordable price.
I suspect as long as there are automotive races using gasoline powered engines, there will be gasoline powered high performance cars available to the public. It will be more expensive. But the technology that has emerged since the muscle car era has been nothing short of unbelievable.
Then there is the Tesla. 0-60 MPH 3.9 secs.
http://www.jaylenosgarage.com/video/...tml?vid=229378