BMW M8 Coupe

The difference between BMW X5 40i and 45e lies in their powertrain. The 40i is powered by a 3.0-liter six-cylinder engine that produces 335 horsepower and 330 lb-ft of torque, while the 45e is a plug-in hybrid that combines a 3.0-liter six-cylinder engine and an electric motor for a total output of 389 horsepower and 443 lb-ft of torque.\n\nThe 45e also has a larger battery pack that gives it an all-electric range of up to 30 miles, while the 40i is solely powered by gasoline. The 45e can be charged from a standard household outlet or a Level 2 charger, and it takes about five hours to fully charge.\n\nIn terms of performance, the 45e is slightly slower than the 40i in straight-line acceleration due to the added weight of the hybrid components, but it makes up for it with improved fuel economy and reduced emissions.\n\nOverall, the choice between the BMW X5 40i and 45e comes down to personal preference and driving habits. If you prioritize performance and don't mind higher fuel costs, the 40i is the way to go. But if you want a more environmentally friendly SUV with the ability to drive on electricity alone, the 45e is the better option.