[drabisan]

2020 will have Android Auto and Apple car.
Also, suspension is stiffer, a diffent tramission generation. And a good difference in noice in the cabin.
What engine the cars have? 1.8 is less sensitive for short trips, while 2.0 doesn't actually like it at all! Difference in power is considerable between 1.8 and 2.

 

[drabisan]

They both are 1.8ltr never thought about noise, I feel silly looking at things like foldable mirrors now! I'm currently driving a 2010 Ford fiesta so with the price of either of these chrs I'm looking at keeping one of them going for the next 10 yrs (hopefully) 😁

Now I notice Ireland.
Sol is the high spec. GR Sport should be at least at the same spec.
2020 is much better insulated sound-wise. I had a 1.8 I bought in 2018 and I switched to a Orange in Jan 2020. The Orange came with 2.0.
But I rented at one moment a 1.8 build in 2021. They knew initial C-HR release could enjoy some better sound proofing and they acted upon.

I would buy the one with less km.