How far can a BMW i8 go in all-electric mode while conservatively driven is the topic of the first video in the upcoming BMW i8 Adventure series on LIFEofOV channel.
Well, we probably have never seen an i8 test like this before, because most drivers go straight for Sport mode with the engine on.
If you ever will do such a strange run in i8, the answer is less than computer tells you. In this particular experiment, the i8 went 14 miles on electricity, not the 18 miles indicated.
That's more or less in line with the EPA rating of 15 miles.