Aston Martin DB12 Coupe MotorHelix 1:18 Resin Limited 99. Aston Martin DB12 Coupe MotorHelix 1:18 Resin – Limited 99 pcs. This Item Is Brand New, Factory Sealed, In the Original Box. This scale model is an authentic replica, factory sealed in its original MotorHelix packaging. Limited to only 99 pieces worldwide, this Aston Martin DB12 Coupe resin model is a rare collectible. We take extra care in packing to protect this rare collectible. Important Info for International Buyers.