An Arduino Nano controls two relays which in turn can turn the car on, start it, and turn it off. Instead of adding a button for “push to start” he opted for a 13.56MHz RFID module.

For those worrying that [Faransky] is relying on the PWM functionality of the Arduino Nano to generate waveforms ... and 16×2 LCD providing an interface to control it over SPI.

The SATURN NITRO is PIC32MK development board that closely follows the Arduino Nano form factor, but with much beefier specs ...