As someone who grew up watching Formula 1 as a kid, watching races of Formula E makes me regret of not wanting to be a race car driver haha. But I watched a few races and their concept is really awesome and unique as compared to the other racing games. Imagine, most of the racing games have a pitstop lane in order to service the car but in formula E, you go there to change cars!
That no longer happens! It was only in the first three seasons.
Now the same car is used for the entire race.
The idea is to be the driver to manage the car battery in the best way, in order to reach the end in the best possible situation. That is why normally the final result is practically clear only on the last lap, from the first place to the last.
For example, if the car that is in tenth, has more battery than the cars that go in front of it, it is more likely to overtake them. The drivers have to know how to manage the whole race very well.
In the case of Attack Mode, the pilots to activate must leave the normal trajectory, but then they have 3 minutes of extra power.