Blackline Car Care appears to be a legitimate website based on numerous positive customer reviews. Customers have praised the quality of their products, such as the BLACKLINE™ ULTRA FOAM, BLACKLINE™ TWISTED-LOOP DRYING TOWEL, and the BLACKLINE™ FOAM CANNON 2.0. Many users have reported satisfaction with the performance and effectiveness of these items. Additionally, the website offers free US shipping on orders over $149 and various promo codes for discounts.