Tresca Soft Drink

Tresca was a grapefruit flavoured soft drink made by Coca Cola and introduced to Australia in 1968. It was a sugar free softdrink.
It is called Fresca in the US and other countries.
It came in cans and a distinctive green bottle.

Does anyone remember it?

I remember drinking it in the 1970s in Melbourne as a kid. It was quite tart from memory.