How many persons fit inside a tuck-tuck

Don´t believe anybody who tries to estimate the correct number of people fitting inside a tuck-tuck calculating the volume and interpolating, the empirical approach is the only valid one here ;)
The answer is 11, including myself. I am wandering how on earth the old cars of my family were only allowed for 9 persons having 3 rows of seats, if you can make fir more people in a tiny tuck tuck. How ever, tuck-tuck-sharing is very ecological (for indian terms), really cheap and very social. After a 5 minute ride closely attached to some initially strange person you end up becoming close friends -- as you are that close already you just skip the formalities -- and favorite photo-object together with some locals hugging you in order to tell everybody that they have this great friend in Spain ….emmmm, Austria, …. …ah yeah, Europe …right. The world is small after all ;)