E65 refers to a specific model of the BMW 7 Series, a luxury sedan produced by the German automaker BMW. The E65 was manufactured from 2001 to 2008 and is known for its innovative design and advanced technology features, including a unique iDrive system for controlling various vehicle functions. The E65 was available with a range of powerful engines, including both gasoline and diesel options, catering to different performance needs. It also offered a spacious and comfortable interior, making it a popular choice among luxury car buyers during its production years.