Adding a Column to an existing Crosstab in Relational Model (Report Studio)

Ok, I got a great Crosstab running based on different conditions in the case statement such as below,

case [X_Query].[CAR_BRAND]
when 1  then 'BMW'
when 2 then 'BENZ'
when 3 then 'PAYKAN'

Now, I need to add a condition to this that would be like,

case ...