The BMW E70 is the development name for the current X5 Sports Activity Vehicle (SAV). It replaced the BMW X5 (E53) in November 2006. It is manufactured alongside the new, 2008 BMW X6 at BMW's Greer, South Carolina plant in the USA and BMW's facility in Toluca, Mexico.

The new generation BMW X5 is 60 mm (2.4 in) wider, 165 mm (6.5 in) longer; with a 110 mm (4.3 in) longer wheelbase, but remains at the height of the E53 X5 at 1,766 mm (69.5 in).

The xDrive AWD system updates previewed in the facelifted X5 have continued with further detail improvements for the E70. It uses a double wishbone suspension at the front. The manual transmission is entirely dropped, leaving only the automatic transmission.

The E70 features many new technological advancements for this class as standard equipment including BMW's iDrive system, electronic 'joystick' gearshift (no mechanical connection to the gearbox to win space in the console), LED taillamps, the first ever all-polypropylene single module fender module, and options such as head-up display HUD, active steering, active damping, and Dynamic Drive which uses active anti-roll bars which use a hydraulic servo in the middle to actively counteract body roll.

The BMW X5 is a luxury crossover SUV introduced in 1999 as the first generation E53. It was BMW's first SUV (Sport Utility Vehicle) also known as "Four-by-Four" (4x4) in the UK. It features all-wheel drive which is branded as the "X" drive system and is available with either manual or automatic transmission. The second generation X5, known as the E70, was launched in 2006, with the first M version announced in 2009.

BMW describes the X5 as a Sport Activity Vehicle (SAV) rather than an SUV, to emphasize its on-road ability despite its size. Like the Lexus RX 300 and Mercedes M-Class, the X5 heralded the shift from light truck-based body-on-frame SUVs to crossovers underpinned by unibody car platforms that would come to fruition in the late 2000s.

X5s are manufactured in Greer, South Carolina at the Spartanburg BMW plant and in Mexico at the BMW de México Toluca plant. Since July 2009, some assembly operations are also performed in Kaliningrad, Russia by Avtotor.

In 2003, BMW launched the smaller X3, which uses the "X" prefix for the 4 wheel drive system or BMW "X" drive system and the BMW SAVs which were derivatives of the BMW number-series models.

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