Calimocho
Calimocho refers to a very popular drink from Spain, made by mixing some red wine with Coke or Cola. Calimocho is said to be developed by the young people from Spain to have their own wine during Botellones. The red wine is mixed with the Cola and drunk straight from the Coke bottle.
Calimocho is also known or spelled as Kalimotxo in the Basque Country and Navarre where it is really very popular.
In Germany, it is said that a drink called "Colarot" (cola and red as in red wine) exists.