Range-Extender Efficiency: 46% Is the New Floor

The bottom line on range-extender engines is not who leads the efficiency chart by a fraction but that China has turned 46% into the mass-production floor, redrawing the line between fuel and electric drive. The old line was that range extenders are a stopgap; now high-efficiency units rival plug-ins on fuel and cost, giving fuel-car buyers a new option.

95L/100km in charge-sustaining mode, 375 km electric range and 1525 km total, launched on 3 March 2026.26%, with 8 million units built and 3 million in two years.

So the same kind of extender differs by 4 to 8 points between Chinese and foreign makes, which on the user side is a few extra liters every 100 km.

The impact is positioning: a high-efficiency extender makes the real range of a fuel-or-electric car believable, killing long-trip anxiety while still driving electric daily, and taking the middle ground from fuel cars and plug-ins. Overseas dealers should treat thermal efficiency as a hard spec alongside range and price; efficient models save fuel and hold resale better, leaving more room for margin.

Before judging a range-extender model, request three documents. First, ask the maker or agent for the efficiency certificate and real charge-sustaining consumption, confirming the 46% band. Second, ask for electric and total range figures and put feed numbers like 4.95L/100km into sales scripts. Third, verify with the channel which high-efficiency extender models are built for your market. For a fuel-versus-electric cost comparison, share local fuel price and range data.