We've seen some incredible advancements over the last 20 years in terms of how car keys operate. What once was just a metal key is now disappearing altogether. Select 2019 car models are coming with fingerprint readers instead.

Hyundai has announced their plan to add fingerprint scanners to their future models, beginning with the 2019 Santa Fe SUV. It will be available in select markets first, followed by a mass release after.

The sensors, which scan and identify the user's fingerprints, will be located on the door handles and ignition button. Instead of using a key fob or proximity sensor to unlock and start the vehicle, the user scans their finger.

The automaker claims the system is significantly more secure than even the most modern key implementations, including smart keys. Always improving, the finger reader will get better and better at detecting the driver's finger the more it's used. They cite the odds of mistaking someone's fingerprint as someone else's at 1 in 50,000, about 5 times more effective than the current systems.

Each vehicle can have multiple users set, each with their own profiles. The vehicle can automatically adjust seat position, car features, and side view mirror angles depending on who opened the driver side door. According to Hyundai's Head of Research & Development Division, Albert Biermann, it won't stop there.

"[We have] plans to further expand the application of the technology to allow the adjustment of temperature, steering wheel position, and many other features which will be tailored to driver's preferences."

Whether the feature comes standard or as part of a deluxe package remains unknown. Sure beats losing your keys, that's for sure.