I hate to say it but from what little video I could find it looks CG generated.

The cars hitting each other were too "pinballish" rigid bodies and not elastic like a real car hitting a real car where metal folds and the cars move move up and down in the impact and not just side to side.

At the very least the scene was very poorly touched up with CG. Notice the headlights on the Cuda do not illuminate the same way the BMW's do. The whole glass bulb glows on the outside not from the inside.

They either used lumious objects instead of making a realistic bulb and reflected light in the CG Cuda or they overlaid CG glow effects onto the headlights of a real Cuda since they may have figured the old incandescent lights didn't work in the scene.

Thank you for letting us in on it.

I had no idea they used a Cuda.