Give it a try - I'll refund the fee for reading the post if its a false claim son
I've tried it now with the Asda alcohol free red - and its not half bad. If you are driving its the nicest seasonal drink I can think of - far better than nursing a warm glass of coke.
If you are stopping in, have a nice walk on a cold day. Having done it this way mix a quarter bottle of syrup with with a nice round "purple" fruity red with not too much tannin heat till steaming, add a zest of orange peel, a grate of nutmeg on top and serve in a stone goblet by a log fire (which should be flaming nicely if you light it just before you put the wine on.
Makes for a pretty special afternoon.
Red