ATC stands for A Top Collector, a premium model car manufacturer that specializes in producing highly detailed 1:43 scale replicas. 

Unlike many other resin model brands, ATC is particularly famous for its high-end luxury vehicle replicas—most notably modern Rolls-Royce models—which uniquely feature opening doors and hoods even at the small 1:43 scale.

While most 1:43 resin models are completely sealed ("kerbside"), ATC models stand out because all doors, hoods, and trunks can typically be opened, revealing intricate engine bays and interior luxury details. They utilize sharp molds, authentic manufacturer paint colors (often utilizing stunning two-tone paint schemes), and finely scaled chrome elements.

ATC models are often presented in acrylic display cases, enhancing their appeal as collector items. They’re sometimes limited edition pieces, peddled through auction houses or specialty retailers with associated premium pricing.