If there is a drag-racing class for Class 8 highway tractors, the 2-stroke DD's would probably rule the roost.
I had a GMC truck with a 6-71. It's amazing how much smaller and lighter it was than a comparable 4-stroke turbo Cummins.
The 6-71 could build revs faster, too. I have seen and heard many American-built firetrucks in the last few decades used 2-stroke DD's for this reason.... they were fast when placed in medium-sized trucks.
But it's hopeless compared to the new light truck diesels which simply build revs much faster and can turn quicker times. The DD '71' series is 71 years old. The '92' series is 35 years old. Other designs have benefitted from much technical progress since then.