We test the mighty new Audi RS Q8 in Tenerife - the largest of the Canary Islands that's known for its imposing volcano. The flagship sports SUV is no less hot as it delivers nearly 600 horses of precise and punchy performance. So, the world's fastest SUV on some of the most stunning roads on the planet. Plus a look at the Audi Q8 petrol V6 on the sands of Dubai. The car was launched in India earlier this year.