BMW 740e xDrive iPerformance
A new report suggests BMW is preparing to upgrade its iPerformance plug-in hybrid models, increasing both power and all-electric range
It's expected that next year (in the second half), a new 745e will replace the 740e, while a new X5 xDrive45e will replace the current X5 xDrive40e.
Exact details are unavailable at this point, but the new, more energy dense lithium-ion cells supplied by Samsung SDI are being step-by-step introduced into more models, enabling to increase all-electric range.
Currently the 740e is equipped with relatively small 9.2 kWh battery for 14 miles of EPA range, while the X5 xDrive40e has a similar 9 kWh battery, also good for 14 miles of range. If the upgrade is as expected, ranges for both offerings would increase to about 20-22 miles, while a generational upgrade (skipping one/today's level) would effectively double the range of the plug-ins.
These more energy dense batteries will also find a new home in the i8 and new i8 Roadster. As such, the battery capacity in both of those trim levels is rumored to be twice the original i8 next year.
BMW X5 xDrive40e
source: BMW Blog