3.1s Eschewing the more typical turbo V8 power path in favour of electric motors gives the ultimate Model X enviable and instant torque. With the benefit of an all-paw launch, it’s the quickest SUV on sale.
4.1s Porsche’s large SUV defies its 2200kg with sportscar thrust. The forthcoming Turbo S E-Hybrid should take acceleration into the threes but it won’t be enough to threaten the amped-up American.
4.1s Britain’s quickest high-rise wagon matches the pace of the petrol-powered Porsche but achieves it with a hugely muscular – and unorthodox – 6.0-litre twin-turbocharged W12.
4.2s The uber-SUV staple twin-turbo V8 gives the X5 M and its style-over-substance sibling the X6 M mighty performance, with 423kW and 750Nm from a 4.4-litre driving four wheels via an eight-speed automatic.
4.2s The three-pointed star would not let rival BMW steal the super-SUV spotlight. In the AMG a larger 5.5-litre bent-eight delivers marginally more grunt and identical 0-100km/h urge.