Not exactly a one on one comparison, but from my personal experience in driving highway/interstate traffic in a 4 speed, ‘37 Chevy 1/2 Ton, driving speeds above about 47 mph is crazy. It’s no fun at all and the concentration and personal energy make the experience a royal PIA. Also, the flaming idiots ogling your ride or worse not seeing you at all and nearly ending up as unplanned cargo in the truck bed make the experience even more to be avoided. To each his/her own, but this old fossil learned his lesson and NEVER again! Back roads, tooling about at a fun and enjoyable 45 or less, and living to drive again another day is for me.
These old iron heaps were never designed or intended to be driven the more modern day speeds, let alone traffic we are accustomed to now.