A 1955 truck is potentially more valuable and easy to sell if it is in excellent condition, such as if it has a high-quality paint job, a well-maintained interior and an engine that runs well. The authenticity of the truck may also affect its sale.
Authenticity refers to how similar the truck is to its original condition. It also refers to the number of original parts as long as those parts are in good condition. Trucks with original factory glass may be worth more, but they are not if the glass is cracked or discolored. Some people add fancy rims or other custom details to classic vehicles, but those additions can also lower the truck's value.
The demand for the particular make and model of a 1955 truck also affects its sale. Since collectors prize certain types of trucks more than others, a truck in high demand generally sells more quickly and for more money. Rare and unique trucks are also more valuable.
The working condition of the vehicle is also important. A 1955 truck that does not work can often still be sold, but its value is that of a project car. A truck that runs is easier to sell, but if it makes odd noises or has other signs that it needs repairs, such as fluid leaks or smoke coming from the tailpipe, buyers may exercise caution before completing the transaction.