The newer Toyotas all have push button start. Apparently, it's not very intuitive, unless you have a lot of experience building PCs with ATX power supplies, that you need to hold down the start button for 3-4 seconds to turn off the engine when it is in drive.
It's almost like Microsoft designed these cars: "What? I push Start to shut down the car/computer?"
It is coupled with RFID chips in your key. I actually find it very convenient on my Hyundai. I can walk up to the car door and open it, it unlocks automatically because the RFID key is in my pocket. I can sit down and start the car and take off without ever removing my keys from my pocket.
It's also very convenient for opening the trunk without a key as well. It has proximity sensors by the driver and passenger doors, as well as the trunk.
It's almost like Microsoft designed these cars: "What? I push Start to shut down the car/computer?"