Tesla’s Cybercab EPA certification documents reveal the robotaxi’s full technical specs for the first time — including a 3,113-lb curb weight, a 219 HP motor, and a 48 kWh battery pack. The filing confirms several claims Tesla made about the vehicle while revealing some surprises. The Certificate Summary Information (CSI) for EPA test group TTSLV00.0L1A, filed on May 21 and certified on May 26, provides the most detailed look yet at the engineering behind the most efficient EV ever produced. Full specs from the EPA filing We dug into the actual EPA documents at the agency’s Document Index System to pull the raw certification data. Here’s what the CSI reveals: Powertrain: - Motor: AC 3-Phase Permanent Magnet, rated at 163 kW (219 HP) - Drive: Front-wheel drive, single-speed automatic - Regenerative braking: Electrical, front wheels Battery: - Type: Lithium-ion, single pack - Voltage: 326V - Capacity: 146 Ah (~47.6 kWh) - Recharge energy (AC from wall): 53.365 kWh Weight: - Curb weight: 3,113 lbs - GVWR: 3,730 lbs - Vehicle class: LDV / Passenger Car Range (unadjusted EPA test results): - Combined: 418.2 miles - Highway: 375.4 miles Certification: - Standards: Federal Tier 3 Bin 0, California ZEV, ILEV - Certification regions: Federal + California (including Section 177 states) - Certificate issued: May 26, 2026 - Introduction into commerce: May 29, 2026 Several of these figures are making their first public appearance. 3,113 lbs is heavier than you’d expect The curb weight stands out. At 3,113 lbs, the Cybercab is about 750 lbs lighter than a Tesla Model 3 Standard Range (~3,862 lbs) — but it has theww fewer seats, no steering wheel, no pedals, and a battery pack that’s roughly 12 kWh smaller. For a two-seat vehicle with no driver controls, 3,113 lbs is substantial. A Mazda MX-5 Miata