GMC has introduced its second-edition GMC Sierra Denali EV pickup in the US ahead of the brand’s local launch with the petrol-powered GMC Yukon Denali SUV next year. For roughly A$150,000 for the extended-range variant, buyers in the US can step into the four-tonne beast that GMC said will rocket from 0-60mph (0-97km/h) in an absurd 4.1 seconds. That’s less than half of the 8.6 seconds it takes for the 5.3-litre V8-powered GMC Yukon Denali SUV, which is a whole 1.6 tonnes lighter. New SUV will dwarf the Toyota LandCruiser and Nissan Patrol: 2025 GMC Yukon is a huge petrol V8 family SUV and it’…