This case study evaluated the impact of advertising a supplement product by placing removable stickers on cars used by sales teams in urban areas of Bucharest, Cluj, and Brasov, Romania over 4 months. A survey of 105 people in Bucharest found that 48% recalled seeing the campaign and 38% who didn't know the product still recalled the message, demonstrating a high recall rate. The study concluded that using cars as an advertising medium can have impact by increasing message recall.