I think you just made XTR's point for him.
The intended purpose of that dragster is to reach the maximum speed possible from a standing start inside one quarter mile. I believe there are multiple classes in the pursuit of this goal but none of them involve the family minivan, which would be impractical for that purpose.
The intended purpose of that rock crawler (whatever its name,) is to get through impassable terrain. Once again, the family sedan would be impractical for that purpose.
A top-end F-Class rifle is designed to produce a high score on a miniature target at very long distances with a large amount of shots. This is something that is not practical with the family hunting or tactical rifle.
The prone on bone atop stones crowd use rifles that have very long barrels and fancy sights while bunched up in tailor-made leather jackets and super-tight slings. This equipment is designed to also produce high scores at long distance with a large amount of shot. I would say those rifles and the ancillary equipment are totally impractical for hunting of tactical purposes.
If I said the earth was round, would you argue that point with me too.
Just cause something is built for an intended purpose, doesn't make it partical. But I appreciate you making our point with the nhra analogy. There are multiple classes, allowing more cars the opportunity to race. Exactly like we'd like to see another class added to F Class, so more rifles can compete. Thank you Denys for that anology.