Most cars used simple metal non-transponder car keys without any programmable chip inside until the late 1990’s. Non-transponder keys are still high security keys in that it typically has a cut on both upper and lower portion of the key which makes the ignition impossible to be picked by a picking tool. However non-transponder key system does not have an immobilizer that will prevent the engine from starting without the correct code so instead it will let the engine to start as long as the key turns the ignition or by touching the starter wires together to start up the engine. This is the most common way cars are stolen by thieves and it requires very little knowledge to successfully steal a car with hot wiring process. Any locksmith can make or duplicate a non-transponder keys for older car models, but we highly suggest that you try it on the spot before leaving to make sure that it will perfectly fit your door locks as well as the ignition itself.