Geely's i-HEV hybrid claims 48.41% engine efficiency in Toyota's lane

Geely Auto Group says its new i-HEV intelligent hybrid system converts a peak 48.41% of fuel energy into useful work — a figure the Chinese OEM claims is the best among mass-produced engines. The number is the sharpest edge of a system aimed squarely at a full-hybrid segment Toyota has owned for decades.

The proof point Geely wants quoted: an Emgrand i-HEV returned 2.22 L/100 km in a test recognised by Guinness World Records. For context, that's roughly 106 miles per imperial gallon — about a third of what a typical petrol compact drinks.

What does the AI actually do?

Software splits the load between engine and electric motors based on road conditions, improving overall energy use by more than 10%, according to Geely. Electric drive covers over 80% of driving time on the worldwide harmonised light vehicles test cycle.

The hardware behind it:

• Up to 230 kW of electric drive
• Engine-off running at speeds up to 66 km/h
• Power delivery within 10 milliseconds of demand
• A patented redundancy layout keeping the P1 and P3 motors and the engine independent, so the car keeps moving if one source fails

Engine and motors can also operate separately, letting electric power lead when conditions allow. Takeaway: Geely is selling resilience as a feature, not just efficiency.

Which cars get it, and when?

The Xingyue L, Boyue L and Preface L Plus are among the models adopting the system. The forthcoming Xingyue L Plus will debut a 2.0TD version pairing a 160 kW engine with a 230 kW P3 motor.

Geely plans a phased global rollout, targeting buyers in markets with thin charging networks who want lower fuel bills without plugging in. The company has not published a market-by-market launch calendar or production volumes — an intention, not a confirmed schedule. That distinction matters; Guinness certifications and WLTP shares are lab-grade credentials, and the rollout will be judged against registered sales, not press releases.

Toyota, for its record, has spent 25 years building the hybrid credibility Geely now wants. Claiming the efficiency crown is one thing. Shipping it in volume, at scale, outside China, is another.

What to watch next: the Xingyue L Plus launch date, first export-market arrivals, and whether independent testing replicates that 2.22 L/100 km figure.