Using a combination of 100 percent second-generation biofuel and geothermally-sourced electricity available from the Icelandic power grid, the Azure Purple Bentley Flying Spur Hybrid covered the 455 miles required to drive across Europe’s second-largest island after Great Britain in a single stint and entirely on renewable power. This journey demonstrated the grand touring range of the most environmentally friendly Bentley and the company’s research into biofuels that can be used without engine modification.
The fuel used corresponds to the same EN228 standard as ordinary pump gasoline, but it was created by Coryton entirely from waste biomass (e.g. straw) at no cost to food production or the natural ecosystem. The production process sees waste biomass broken down using fermentation, resulting in the creation of ethanol. Dehydration of the ethanol converts it to ethylene, which can then be transformed into gasoline through the process of oligomerization – chaining short hydrocarbon molecules together to produce longer, more energy-dense ones. The combination of this fuel and the Flying Spur Hybrid’s intelligent electrified powertrain meant an overall reduction of 45 percent in CO2 emissions over the course of the trip.
The electricity used by the car’s hybrid system during the journey was sourced from Iceland’s 100 percent renewable grid. 75 percent of the country’s electrical energy is produced via Hydroelectric and 25 percent from geothermal power. During its time in Iceland, Bentley Flying Spur Hybrid was charged with electricity from the Svartsengi geothermal power plant.
Bentley’s new powertrain combines a 2.9-liter V6 petrol engine with an advanced electric motor, delivering a total of 536 bhp (544 PS) and 750 Nm (553 lb. ft) of torque – an additional 95 bhp in comparison to the Bentayga Hybrid. The new Flying Spur becomes the most efficient Bentley ever having the capability to cover 700 km when fully fuelled. With high power reserves, superior torque, and quick throttle response, the latest hybrid model sprints to 60 mph from a standstill in 4.1 seconds (0-100 km/h in 4.3 secs).