Lou,
I'll preface this by saying don't think I have quit my 25 year love affair with Turbo Buicks but I can tell you that most Buicks will get their ass handed to them by a Hellcat. It's not to say that a 10 second Buick won't go toe to toe with a Hellcat but most TR's and GN's don't run 10's especially on pump gas in street trim. A stock Turbo Buick is a 14 second car and there are plenty out there that run like crap and can't get out of their own way. Just being realistic, time marches on...
Neal