Got the concrete off my car, left streaks in the paint.
Right next to where I work and park, there was construction on a new apartment/condo building. A whole lot of mortar ended up on my car without any warning. No sympathy from the construction company. This product got it off well after it hard hardened (took an afternoon and a few applications), but this product runs and left streaks in the paint. It works, but be prepared for your car to not look the same. Mine is silver, for reference - it lightened the color.
Rating: 4 stars