The boys in blue have gone green.

New South Wales Police has taken delivery of a BMW i8, the hybrid sports car that consumes just 2.1-litres per 100km - making it the most fuel efficient car on the force. A far cry from the V8-powered Holden Commodore SS pursuit cars the futuristic looking German machine is powered by a compact 1.5-litre three-cylinder turbo engine paired with an electric motor to produce 266kW and 570Nm of performance.

But the BMW won't be used for high-speed pursuits. Instead it will be part of the Rose Bay Local Area Command's community engagement programs, using the head-turning looks of the car to start conversations with members of the public at various events over the next six months.

Rose Bay Police Commander, Superintendent Bradley Hodder, stressed that the deal is a commercial arrangement between the Rose Bay Chamber of Commerce and the BMW Sydney dealership, with no tax payer money being used for the i8.

The BMW is the latest in a long line of exotic cars to be used by NSW Police for similar roles. Previous cars have included the McLaren 650S, Volvo S60 Polestar, Jaguar XF, Audi RS4 and S7 Sportback, Porsche 911 and Panamera, Lexus RC F and Aston Martin Vanquish.

NSW Police have previously had several other premium cars including this Porsche Panamera. Photo: Supplied

But the NSW Police have a way to go to catch their colleagues in Dubai. The police fleet in the United Arab Emirates city consists some of the world's rarest and most desirable supercars including the Aston Martin One-77, Lamborghini Aventador, Ferrari FF, Bentley Continental GT and even a Bugatti Veryon.

The NSW Police have added a BMW i8 to its fleet. Photo: Supplied The NSW Police have added a BMW i8 to its fleet. Photo: Supplied NSW Police have previously had several other premium cars including this Porsche Panamera. Photo: Supplied

Interested in buying BMW i8? Visit our BMW showroom for more information.