Diecast toys have been popular for several generations. Being metal they tend to last, even as the vehicles and objects they represent become obsolete. They have remained popular collector’s items since the children who originally owned them grew to maturity.
Early die cast model toys were little more than the outer shape of a vehicle with working wheels. Over time more details were added, including windows and interiors. Opening doors and other features were introduced as different manufacturers competed for sales. Latter models had very fine detail, and were aimed at adult collectors rather than children. Many were not suitable as toys, sometimes being mounted on an immovable base designed for display.
The values of die cast toys is as unpredictable as any other collectable. Any toy from a popular film or cultural phenomena will tend to be popular, but value is often based scarcity rather than popularity. Nonetheless, famous model vehicles, real or fictional, are well worth investing in.
Unlike some items, such as clothing that must be the right size, die cast toys are ideal for online ordering. They remain popular as presents and as collectables.