Aston Martin DB12 Coupe MotorHelix 1:18 Resin Limited 99. Aston Martin DB12 Coupe MotorHelix 1:18 Resin – Limited 199 pcs. This Item Is Brand New, Factory Sealed, In the Original Box Stock Available: 1 unit only. This scale model is an authentic replica, factory sealed in its original MotorHelix packaging. Limited to only 1 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.