* Hybrid Systems Vary: Different hybrid models use different systems. Some have a more powerful electric motor and can drive longer distances on electricity alone. Others rely more on the petrol engine.
* Driving Conditions: The switch between electric and petrol is managed by the car's computer, taking into account factors like:
* Speed: Higher speeds generally require more power, making it more likely to use the petrol engine.
* Acceleration: Sudden acceleration demands more power, often triggering the petrol engine.
* Battery Charge: If the battery is low, the car will switch to petrol sooner.
* Terrain: Driving uphill requires more power, likely engaging the petrol engine.
Instead of a specific speed, think of it as a range:
* Low speeds, gentle acceleration, and a full battery: You'll likely stay in electric mode for longer, possibly up to 50 mph or even higher.
* High speeds, aggressive acceleration, or low battery: The petrol engine will engage more readily.
To get the most accurate information, check the specific owner's manual for your hybrid car model. It will detail how the system operates and provide an estimate of its electric-only range.
