I'm looking for an 11 letter word . Letters 1, 2, 3, 4 spell the name of a bank. 5, 6, 7 spell the model of a car. 8, 9, 10. and 11 are a mode of transport. Anyone know what it is?

Citizenship!

It took me a couple of minutes to work out, but I knew straight away that the four-letter bank had to be Citi Bank - it was the only four letter bank I knew!

I didn't get the car model part at first, so I just skipped to the end of the word. -ship is a pretty common suffix among nouns, and there aren't too many obvious modes of transport with only 4 letters in their name.

Once I had Citi___ship it became pretty easy to work out the 3 letters in between.

Just to make sure, I Googled the term "Zen car model", and discovered the Suzuki/Maruti Zen.