Was able to combine data into spreadsheet so that it would be easier to work with. Data is taken from ADAC website . Currently only for cars which cost less then 30 000 euro. Data is valid for 19.10.2017. Total 3441 car models/specs: https://docs.google.com/spreadsheets/d/1IXVQ46SgrYF6mAWrtUB8_PAzUNJQB2sKDttl29mn5qM/edit?usp=sharing Min/Max Plot: https://plot.ly/~KirillStrelkov/1.embed