HotWire is a bidirectional testbed for the DIN 70121 and ISO 15118-2 vehicle-to-grid charging protocols. It implements both sides — a rogue EVSE (charging station) and a rogue PEV (electric vehicle) — plus two concrete attacks: (A1) Autocharge EVCCID impersonation, and (A2) forced discharge via fabricated PreChargeRes voltage claims. This archive accompanies the USENIX WOOT '26 paper "HotWire: Real-World Impersonation and Discharge Attacks on Electric Vehicle Charging Systems". It contains the full Python implementation, a Docker-based CI test harness (240 unit + integration tests), parametric simulation scripts, hardware design and recovery documentation, safety notes, an Artifact Evaluation Committee (AEC) verification entry-point, and the historical Luxgen N7 forced-discharge bench logs cited as A2 evidence. The artifact can be evaluated entirely inside Docker plus IPv6 loopback simulation — no real charging station, no real vehicle, and no PLC modem are required. See ARTIFACT.md in the archive root for the AEC evaluation path. Source repository: https://github.com/sickcell6000/HotWireLicense: GNU GPL-3.0 (inherited from upstream pyPLC).