Good article, thanks. The link it contains to BioNTech's March 17, 2020 press release announcing their Letter of Intent to collaborate with Pfizer was interesting.
The Guardian in the UK published a couple of articles earlier this week that appears to show the Germans had actually already come up with the vaccine in March (prior to linking up with Pfizer) and that the latter was brought due to the challenges the former would have faced with distribution.
"By March, when Germany entered its first lockdown, BioNTech had already developed 20 candidates for a vaccine, of which it would go on to test five for immune reactions in a research programme accompanied by 500 scientists called Lightspeed.
The breakthrough came in early November, after an interim analysis showed their vaccine candidate to be 90% effective in protecting people from transmission of the virus in global trials, better than most experts had hoped for."
If you want to read both, here's the links...
https://www.theguardian.com/world/2020/nov/09/biontechs-covid-vaccine-a-shot-in-the-arm-for-germanys-turkish-community
https://www.theguardian.com/world/2020/nov/10/ugur-sahin-and-ozlem-tureci-german-dream-team-behind-vaccine