tom_andraszek, Lots of interesting data in this 2014-2019 German study.
"Cycling rather than driving was positively associated with orientation towards the common good in all models. Cycling was the only variable that was a significant positive predictor for all four facets of orientation towards the common good after controlling for possibly confounding variables (homeownership, personal income, education, sex). "
https://www.sciencedirect.com/science/article/abs/pii/S0272494423001731