Demonstrating the vision Audi’s developers and designers have for the dynamic yet efficient SUV of tomorrow, the latest Q8 concept combines electric power with a six-cylinder TFSI and a mild hybrid system – a world first that enables it to deliver an exceptional 476bhp with the efficiency of a four-cylinder equivalent. The 3.0-litre TFSI engine powers the Q8 sport concept from 0-100kmph in just 4.7 seconds and keeps going until it reaches its top speed of 270kmph. Meanwhile, its range of more than 1200 kilometres ensures it is also suitable for long journeys. Thanks to the superb recuperation performance of 20kW, this imposing SUV holds a considerable fuel economy advantage over a model equipped with a regular TFSI six-cylinder engine without mHEV system, and its CO2 output also shows a 25 g/km improvement. Positioned at the rear under the luggage compartment, the lithium-ion battery with an energy storage capacity of 0.9 kWh makes it possible to keep moving slowly in stop-start traffic with the combustion engine switched off, as well as allowing for manoeuvres and parking under electric power alone. During braking, efficient recuperation using the 20-kW-strong starter generator quickly recharges the battery to ensure that the vehicle can regularly be driven under electric power. In addition to the two exhaust gas turbochargers, the electric powered compressor provides the Q8 sport concept with an additional kick by supplying the three-litre six-cylinder engine with fresh air.
The electric powered compressor supports the turbochargers at times when the exhaust gas is insufficient for rapid development of power. It therefore opens up delay-free acceleration to the V6 petrol engine – something previously only known to diesel engines and electric motors. It’s a recipe for success which already works impressively in the series production Audi SQ7.At first glance, it is clearly a highly dynamic and luxurious Audi – that’s how the Audi Q8 concept study was received at the 2017 Detroit Motor Show. The debutant in Geneva is an even more sporty variation of this composition and is also an elegant alternative to the robust presence of a classic Sport Utility Vehicle.
