its 1:43 scale and 1:50 scale have grown and prospered for diecast commercial vehicles. Other scales which are popular include 1:64 scale (the same as S scale American Flyer trains), 1/87 (the same as H0 scale trains), and 1/34 (which has no parallel in model railroading). Outside Britain H0 gauge (1/87) trains are more popular than 00 gauge (1/76). For that reason 1/76 scale commercial vehicles have less appeal outside the UK, but 1/87 scale trucks are very popular, not only with model railroaders but with truck collectors as well. Most HO scale trucks are primarily plastic, whereas trucks in other scales tend to be diecast metal, often with some plastic parts. References Toy cars and trucks Scale modeling