- The Speed
The Tesla Model 3 in the full-fat, extra-cheese Performance mode cracks 150 mph just like that. The BMW i4 has a more powerful motor and a larger battery pack. But, the drag coefficient is 0.28 compared to Tesla’s 0. 23. In a straight line, the i4 will be faster. Conservative estimate? 170 mph. BMW knows how to make powerful sedans that surprise much costlier cars in a drag race. It’s their thing.