To add to Cap's comments, proving that relationship is not easy. If your friend is a known taxi operator, your chance is next to zero. If they are a bank manager with no history of acting as a taxi, your chance is much better. But if there is any hint of money transactions, even in the past, your chance can quickly go back to zero...

A taxi driver friend of mine was recently driving a visitor in his personal car (white plate), not his taxi. He was doing it for free because they were both heading to HiLo. My friend heard him talking with a mutual acquaintance about HiLo so he offered to give him a lift. They got stopped and his vehicle was seized and that free ride ended up costing my friend about j$60,000...

There was no way for either of them to prove no money changed hands, and it would an illegal taxi to boot.

When traveling in someone's personal car and you are a visitor, there can be consequences for you and the driver.

Please use legal red plated transportation for everyone's sake.