Ever wanted to sit inside the nerve systems of your car's nervous system and watch it think? This workshop sits you there. Each participant gets a Raspberry Pi that is acting as a real ECU - engine, brakes, doors, climate control - all connected together into a fully connected CAN bus network built from 20 Pis. The network behaves exactly like the insides of a real car. You just get to poke at it without voiding any warranties (and get into trouble of you neighbour for bricking his Porsche :)). The session starts with a 20-minute intro covering CAN bus basics and the tools we will use. Then the real fun begins. You will use SavvyCAN to watch live traffic from the simulated network, identify what each ECU is saying, decode signals and then - once you know what you are looking at - start replaying and manipulating frames to see what happens. No Linux experience needed. No Python needed. No prior knowledge of cars or electronics assumed. If you can plug in a cable and click a mouse, you can do this workshop. Everything is provided. Just bring curiosity.