Re: "It’s about pressing a button on your keyfob to find out where you parked your car"
Before radio key fobs it was not unknown to find yourself trying to unlock a car a few rows away from where your identical hire car was parked.
One dark and stormy night I walked across a rain-swept customer car park to my car. On getting close I realised that the single car in the middle of the empty rows was a Mini. My same coloured Range Rover was back near the entrance.