The slick design features one continuous pane of glass in the rear roof area, which Musk said will give passengers amazing headroom and a 'feeling of openness'

The Model 3 - the company's first mass market car - is a pitch to middle class drivers and a key component in Musk's vision to mainstream the electric car

At the end of his speech Musk revealed that the Model 3, the fourth by the brand, was an instant success - with a total number of orders surpassing 115,000 in 24 hours