The 1986 mark-4 Hindustan Ambassador, it has Toyota's longest diesel engine the Toyota 2C. the car is located in Kerala. the person who reviews this car is Mr. Dajish P. In all his videos, he speaks in Malayalam but there are Subs to understand what he says. Question----- Can we Indians Swap Engines or Modify Engines or Tune engines for our personal use for performance gains on public roads. what are the rules and regulations.