you can buy a tool that has reversed teeth serrations to grip the outside of the bolt head - you will need to hammer it on there and then use a tool to rotate it.

I have been in a similar situation in a BMW, in that car I used a knipex cobra pliers to grip the outside of the bolt and used the driving tool, applied torque to both items and the bolts were removed.

Out on the bench I saw that someone had already chewed up the bolts in the past.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)