Looking at the amount of concrete debris on your tyre, and the significant damage to the wheel rim, regardless of speed, an extraordinary level of force has been applied to your steering through kerb impact, even though it was low speed. It's that kind of force that tends to flex or bend things...
Like I said in post 2 Pammy, if it were mine, I would go for a new rim, and a full visual check on steering geometry to be safe.
A number of years ago I had a similar incident and had a rim "repaired".
It needed a barrowful of weights (which kept falling off ) to counteract the wheel vibration afterwards as the rim had distorted, only fractionally, but enough to cause bad vibration at speed, and the toe-in was out by a mil or two...
I ended up buying a new one and using the damage repaired as a spare.
Even though the rims are cast they are malleable and can distort with enough force.
And you have to ask yourself, "do I need a damaged rim on the steering end of my sports car, how much trust do I have in it...??"
When it comes to steering and driving a powerful car on today's roads I personally don't think you can compromise on your safety, you need to be sure.
I'm sure your conscience will reply wisely..