According to CNET, citing information obtained from undisclosed sources, the future Model 3 rival will be powered by several batteries, starting with a 80 kWh one that should be good for 373 miles of range, as measured under the NEDC cycle.
Charging times for this battery should be in line with the technology available today, that is 35 minutes for an 85 percent fill using a 150 kW fast charger.
The electric drive of at least one of the i4 variants should be good for 530 horsepower, and an acceleration time of 4 seconds. The top speed is said to be limited to 120 mph (193 kph).
The technical details mentioned above have not been officially confirmed, but they do seem to fit with the plans the Bavarians have for their electric sedan.
The i4 was initially believed to be ready for unveiling next year, but on the sidelines of the 2018 Paris Motor Show, BMW’s chairman of the board Harald Krüger confirmed the launch year for the i4 as being 2021.
"Our passion is premium mobility. And, we chart our own course. We are setting the pace in electro-mobility: the BMW Group is clearly Number ONE in Europe in electrified vehicle sales,” the executive said at the time.
“And it is my pleasure to announce that the BMW i4 will also be arriving in 2021.”
That means there’s more than enough time left to either confirm or deny the above specs, and also to get more info about this new electric Bimmer.