I can see a handful of benefits to technology like this.

• You don’t need the owners keys to move the vehicle. Thus you can retrieve or even rearrange vehicles at any time.

• Better for the environment. You reduce unnecessary gas usage since the bots use electricity.

• Can be used indoors. No gas means no fumes which means parking garages wouldn’t need expensive ventilation systems to remove the CO2 gasses

• Better mobility. These can turn on a dime and move sideways. That means a parking garage that fits more cars and takes up a smaller footprint.

• Potentially safer for the cars. This one rides on them actually perfecting the technology, but the bots could eliminate the risk of car damages due to human error.

Granted, I see this less as a technology for rich snobs and more as a thing for packed cities or huge businesses.