One of the most hotly anticipated electric vehicles makes its formal debut next week. Its the Blank Slate, a refreshingly simple pickup truck EV designed by Slate Auto, which is trying to take some of the soaring cost out of a new car with a back to basics approach that means even electric windows are an optional extra. Of course, a crucial aspect of this pared back approach is pricing. Plenty of people are attracted to the idea of a truck with a compact footprint, no infotainment system or...