A year in, I'm still the only one spotting Czech Greengos.
I planned a trip to Prague in March, but COVID-19 ruined it. The lockdown started the day before my journey. Hopefully in the next year I will be able to get to Prague and spot some of them.
I opened up the app and transcribed the "available greengos" list into an Excel table (can share if wanted). At 1:15 AM today (15 mins ago as I type), there are 182 cars available for a ride (I presume cars that are in the shop or insufficiently charged don't show up on the list, so there may be up to ~200 cars in the GreenGo Czech fleet). Plates closest to this one are (EL)481(AD), 482, 483, 484, 486 and 487. I checked all 6 of them (the app tells you the car's color but then you have to scroll through the list again) and all of them except for 487, which is yellow/gold, are black, so that makes 5 black cars, maybe 6 if there is number 485.
Yeah, Covid ruined lots of plans. I wanted to go abroad too, but oh well. Hopefully the pandemic will be over soon. I'm not even scared of catching the virus anymore, though I'm still abiding by the rules, I just want the bans and restrictions to end. Let's hope! And stay safe.