There's a logical reason why.
Yes, it's true. If you pitted a Dodge Challenger Demon against a Jeep Grand Cherokee Trackhawk, the latter would eventually win the race. The Demon is actually electronically limited to 168 mph while the Trackhawk tops off at around 180 mph. So, why is this? Isn't the Demon supposed to be the badass drag racer Dodge has been telling us for months now? Doesn't it have 840 hp over the Trackhawk's 707 hp? Jason Fenske is back with another episode of Engineering Explained and, ever so conveniently, he has the explanation for why this is so.
It all boils down to the tires. You see, because the Demon's sole purpose in this world is to dominate the quarter-mile, it requires special tires. Dodge opted for a set of street legal Nitto drag radials and because of their soft compound with hardly any tread, a limited top speed is required. That speed is, of course, 168 mph.
Technically speaking the Demon is certainly capable of going faster, as the Challenger Hellcat Widebody has a top speed of around 197 mph. Theoretically, if one were to remove the Demon's top speed limiter and swap out the tires for an appropriate set, a 200 mph top speed is totally possible. The flip side to this is knowing there's a Grand Cherokee out there capable of going 180 mph. It's a good time to be alive.