Yep, it is possible, with a pretty ugly workaround.
I've just done a clone of the linear gauge table, overlayed it, and set the style background transparent.
And here's another answer on the same situation from Frank Hartmann:
you need to make two charts.
one chart that only contains the gauges and the second chart only containing the values. then you need to make backround of the second chart transparent and place it on top of the first chart.