You can name WHATEVV ER almost C... maybe just coins...

Intresting... why not?

I added INR but I'm confused on what should be the conversion unit. Can someone help? And I'll raise a pull request.

If you mean the exchange rate, it's relative to GBP.

It looks like roughly 90 INR == 1 GBP in the last few years?

Okay sure 90 it is :)

Really, just pick something that makes the in-game prices look about the right size of number to you. ;-)
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OpenTTD doesn't simulate changes in exchange rate over time, so it'll never be historically accurate.

Created PR fixing this issue #8136

Really, just pick something that makes the in-game prices look about the right size of number to you. ;-)
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OpenTTD doesn't simulate changes in exchange rate over time, so it'll never be historically accurate.

Would be interesting though. Like imported trains will cost according to the currency and whatnot.