The wifi pineapple equivalent of this would be a device that records all signals sent, filters it for unlock and start car commands, and then allows you to just bulk replay each set back until cars start.
You could effectively leave it in the bushes at a work parking lot, come back the next day, and unlock + start all of the cars with keyfobs that were present the day before.
You could effectively leave it in the bushes at a work parking lot, come back the next day, and unlock + start all of the cars with keyfobs that were present the day before.