In fact, 203 mph is a very conservative estimate, even for the widebody variant. Dodge underestimated the top speed so that Redeye owners don't void their warranty; also another thing too, they didn't want it to conflict with the Viper supercar, which was rated at 206 mph as far as back in 2012. You can reach up to 210 mph in a Widebody Redeye in 6th gear using the standard gear ratio, or even 212 mph in 7th gear using the optional acceleration-focused gear ratio. I was wrong about the Redeye not making more power than claimed; it really does make more than the advertised 797 hp! In most cases, it is as fast as the Demon; just not on a quarter-mile dragstrip.
Drag coefficient: 0.39 - 0.42 Cd (depending on configuration)
Frontal area: 27.82 - 27.96 sq. ft. (including mirrors)
Curb weight: 4382 - 4492 lb (depending on configuration) (+165-166 lb for driver)
Top speed: 211.xx mph; rounded up to 212 mph either way (same as Demon variant; verified @JBPG)
= ~800 rwhp to reach top speed = ~940 hp to the crank
Full disclosure: Physical stats are estimates of my own; I refuse to take magazine tests and manufacturing claims word-for-word. I do not take liability for any errors.
TL;DR: The factory ratings of 797-807 hp are not correct. Redeyes and Super Stocks are only advertised like that because Stellantis won't allow either of them to compete in the same power league as hypercars, which include the ultra-expensive Aston Martin Valhalla and Ferrari SF90 Stradale.
The standard-body Redeye should be good for just a bit over 217 mph.