Let's see here side by side comparison of the specs. I'm assuming you have the sedan not the two door coupe. The top image represents the 2020 model sport sedan. The image below it in each image represents the 2023 sport sedan.
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As we can see here your vehicle is lighter 2,847 lbs for curb weight it's also .1 second slower than the 2023 sedan from 0 to 60 mph. The 2023 version also gets 1 mile per gallon better in the city.
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Your current vehicle as we can see here has a better turn radius and more cargo space.
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Your vehicle uses more energy per barrel of oil compared to the 2023.
Outside of that they are fairly similar mechanically. They use differing CVT transmissions the 2023 version being more refined and reliable. As far as technology goes when entering the automobile the 2023 has smart entry and auto lock when you walk away. It is a very unique feature and one I really enjoy on my 2022 Civic hatchback sport. The dash layout instrument cluster on the 2023 sedan I much prefer compared to your 2020 sedan. The steering wheel button layout is much improved also. I don't blame you for wanting to stick with the famous legendary K series 2.0 L. After all that engine didn't cause a class action lawsuit like the 1.5 L turbo engine did. Not to mention it caused Honda to drop the Earth dreams badge from the valve cover on both engines. I guess they didn't want sales to decline via stigma as it was named in the lawsuit Earth dreams engine oil dilution problem. Now many say well Honda fixed that with a software fix. I myself being mechanically inclined I ask what did it do exactly? Being a mechanic I own one of those big fancy scan tools now that works through the onboard diagnostics port. commonly abbreviated OBD II. I also own a j box that can program tune vehicle modules. I can tell you what that software fix does and doesn't do if you like. It lessens the problem but it doesn't eliminate it that would require piston rings of a differing design a redesign. One that would compliment that new tune software fix with lower injector pressure and higher engine operating temp. If you happen to be the owner of a 2020 Civic Sport coupe disregard all those comparisons above. That would be a whole different ball game measurements turn radius cargo capacity all that stuff. Those are the two body styles for that year that got the 2.0 L. Have you thought about the 2023 sport hatchback with the 2.0 L ? I think you would absolutely love it. It would be my pick for the increase in cargo capacity interior measurements alone. I've heard the 2023 HRV is sporting the 2.0 L as well. In fact that will be my next purchase you got to have the 4x4 sometimes. 😶🌫 Anyway hope this helps you in your decision. GL 🙂