Still Smoking: The PHEV Emissions Scandal Continues
cleantechnica.com Oct 15, 2026

Still Smoking: The PHEV Emissions Scandal Continues

AI-summarised brief · reviewed before publication

Transport & Environment’s analysis of 2024 real‑world data shows plug‑in hybrid electric vehicles (PHEVs) emit nearly six times more CO₂ than the official WLTP figures, widening a gap that has grown as manufacturers shift to heavier, higher‑power models with insufficient electric‑motor capacity. The discrepancy underpins the upcoming November 2026/27 utility‑factor (UF) correction, which aims to align official accounting with actual climate impact and spur design improvements. Past UF adjustments in 2025 already prompted longer electric ranges and lower emissions, and T&E projects that by 2030 ranges of 140–220 km could keep PHEVs at or below 50 gCO₂/km. The agency warns that current tax regimes still favour high‑emitting PHEVs, and urges EU co‑legislators to support the UF correction without political interference, while tightening tax criteria to reward genuinely low‑emission models.

💡 Why It Matters

  • · Aligning official emissions with real‑world performance will force manufacturers to deliver truly low‑carbon PHEVs, preventing misleading climate claims and ensuring tax incentives reward genuine efficiency.