Maggie is definitely more whippet than terrier,I have read up on the characteristics of the breed and she ticks all the boxes !! Gentle,Loving ,Loves to follow you around,Great with kids/dogs,Couch potatoe 
,Doesnt shed much hair and only needs a glove brush once a week,very clean dog,quiet & calm in the house,Loves her food,very intelligent . 
She would a brilliant dog for agility as well.I bought her a little coat yesterday as the Whippets really feel the cold,and just as well as its freezing today so she will be nice & cosy now when we go for a walk. 