This 500bhp 4.0-litre V8 petrol engine is capable of thrusting the near two and half tonne SQ8 from 0-62mph in just 4.1 seconds – or in other words, 0.4 seconds quicker than an Aston Martin DBX. It also has a number of efficiency-boosting features up its sleeve, such as a ‘cylinder on demand’ system that can shut down half of the engine’s cylinders when possible to reduce fuel consumption.