Assuming you mean, can you install a push button start in an old car- the answer is yes! It's a relatively simple process that can be done at home with just a few tools. You'll need to purchase a push button start kit and then follow the instructions included. The most difficult part will be running the wires from the button to the starter, but as long as you take your time and are careful, it should be no problem. Once everything is hooked up, testing it is easy- just make sure the car is in park or neutral and push the button. If all goes well, your car will start right up!