The cost of car key replacement years ago was much lower due to the simplicity of the car keys. The services of cutting new car keys were also offered by any home improvement store since there were no technicalities involved. Over the years, car manufacturers have boosted the security of the vehicles. With that, the car keys have changed as well which are now comprehensive electronic devices. All the changes in car manufacturing along with the security boost into the car keys have driven the cost of car key replacement up.