Adding a columns total to the view allows you to see the values for the total per column in the tooltip. The values do not appear on the report however so did you need the values to appear at the bottom without appearing in the crosstab? If so, utilizing a dashboard is the fastest way to go. Using a view just for the totals and then another view for the crosstab:
And you can see the totals per Car type with a window_count() calculation.
Thank you very much for attaching a workbook to the question.
I hope this helps.
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Sample 20170524+pv.twbx 214.1 KB
Thank you Patrick for the reply.