Was an overhead flash used here?
I doubt it. It looks like good natural light to me, with judicious use of a polarizer and solid post-processing. There might be a single flash placed to the photographer's right, other than that I don't see much sign of lighting.
>>2785669
you'd probably be able to see it in the windshield
>>2785682
Not true. You can still remove it in post. Especially if it was more than one exposure.
But to the OP there doesn't look like any, but probably a fill flash for the front bumper.