Thus, the car adds a DHT11 temperature and humidity sensor, along with a BMP280 air pressure sensor using the Grove connectors. Driving the car is done via a Blynk smartphone app that communicates ...

There’s a slight chance this is an April Fools’ gag, but apparently some guys rigged up a Nokia Series 60 phone to control an old car via Bluetooth.

He takes a garden-variety Arduino and a cheap Bluetooth interface board and then controls it from Chrome. You can see the video below. The HM-10 board is cheap and could connect to nearly anything.