Don't have the Coca Cola cake recipe, although I've seen it somewhere. Still
checking my cookbooks. However, you might be interested in the following:

Ginger Ale Pound Cake

2 sticks butter
1/2 C. Crisco
3 C. Sugar
5 eggs, beaten in one at a time
2 tsp lemon extract
2 tsp vanilla extract
1 tsp. salt
3 C. all-purpose flour
1 C. ginger ale

In a large bowl, beat butter, Crisco, & sugar until light & fluffy. Beat in
eggs thoroughly. Add flour & salt. Beat in extracts & ginger ale. Pour
into greased & floured tube pan. Bake at 325 degrees for 90 minutes.