Several discreet modifications have been made to the BMW 7 Series and i7 to make them more luxurious cars. Increased battery size and range in BMW i7The updated BMW i7 also receives major improvements in its electric powertrain. The previous rear-wheel-drive i7 50 eDrive has been replaced by the new i7 50 xDrive, which comes with an all-wheel-drive system as standard. Both electric variants now feature a larger 112.4kWh battery pack, replacing the earlier 101.7kWh unit. The new i7 50 xDrive delivers 455bhp and 660Nm of torque, while the top-end i7 M70 xDrive produces 680bhp and 1,100Nm of peak torque.