Initially, the BMW electric flagship was available with a 21.6 kWh battery in two versions: with and without REx (range-extender gasoline generator). Sales of both were similar and, in general, rather low.
Then, around late 2016, the upgraded 33.2 kWh version proved that customers want more range. Sales of the BEV version doubled, while REx stabilized at the previous level.
BMW i3 sales in Germany - July 2019
The biggest shift happened recently with the third, 42.2 kWh battery version, which has moved sales to several hundred per month with an all-time record of 967 in July 2019 (in fact, it was the fourth record set in seven months).
The REx, on the other hand, was withdrawn from Europe as there was no point to pay the cost of certification to the new WLTP test cycle in September 2018.
The example of BMW i3 shows us that a gradual increase of battery pack capacity and range directly translates into higher sales.
Three versions of the battery packs:
- BMW i3/i3s (42.2 kWh; 120 Ah)
- BMW i3/i3s (33.2 kWh; 94 Ah)
- BMW i3 (21.6 kWh; 60 Ah)