The spotters checked the license plate of the car and found out it's registered as a petrol runner. In addition, when the engine is turned on in the video, it sounds suspiciously like a supercharged unit, something Range Rover is well known for.
We can only presume that the company has found a way to combine a supercharged 3-liter with about 380 hp and an electric motor into their brand new 4x4. We could very well be looking at something with emissions of under 100 g/km, the lowest of any British SUV ever made.
Petrol-electric plug-in vehicles are becoming relatively commonplace in the market because they combine the dynamism and engagement of a regular petrol engine with lower emissions. In a lot of markets, this makes ownership of a powerful car like this much cheaper due to tax breaks.
Porsche has already launched a plug-in version of the Panamera called the S E-Hybrid and is planning to do the same to the Cayenne. BMW, meanwhile, has revealed its plans for a lean, mean SUV in the form of the X5 eDrive. It has a turbocharged 2-liter engine delivering 245 hp and 350 Nm (236 lb-ft) at the front and an electric motor at the back with 95 hp and 250 Nm (184 lb-ft). Combined, they deliver an output of 340 hp and 600 Nm (420 lb-ft). Preliminary figures released by BMW before actually putting the model into production show an EV range of up to20 miles (32 km) and an electric-only top speed of up to 75 mph (125 km/h).