If my cars cant get my heart going just with acceleration then they not fast enough, thats how i judge when i need more power.
Different cars handle it differently, its not just about your bhp.

And pretty much any car can get your heart going on corners and whatnot, thats just how you drive them.
Im pretty confident i can scare the shit outa most passengers if they come out for a bit of S1GP in my shitbox volvo...