Today my daughter was involved in a smash and grab.Although anti smash and grab was fitted to the vehicle(thickness unknown) on the third try the thief got through which happened in seconds.Stuck in traffic on ah off ramp in Johannesburg she could go no where.I have used Anti smash and grab for 6 years and was under the misapprehension it was reasonably safe.The thieves have either counteracted the problem or it was an inferior product.