Cars are just enormously heavy these days. I was pondering it the other day thinking that even with one of the most advanced petrol engines you can get, and things like stop start, regenerative braking, cylinder deactivation etc., I'm not really getting that much better economy than I did in my 1985 mk2 golf gti with 200k on the clock. Acceleration is pretty much the same and less exciting to boot, while absolute cornering grip may be a little bit better, the gti felt a lot more nimble and you really knew where the grip was without power steering.
New car is a bit comfier I guess
And the brakes are about a million times better.