Does anyone know the lenth of time for a X5 to be built once the VIN number has been issued!

I know it takes approx a week to build a X5 but I was wondering once they issue the VIN number how long before the engine number is issued and the X5 actually starts production or is it that once you get a Vin number the X5 has actuatly started production and in about 7 days it will be completed and the engine number is then issued?

Anyone!

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X5 M50d White | 20" Rims | Adaptive Drive, Self-Lvl Susp | Act/Steer | HUD | Xenon, Adapt Lights | H-Beam Ast | Rear/Side Camera | Panorama S/roof | Auto Tailgate | Comfort, Active, Ventilated, Heating, Lumbar, Navada Perforated Leather Seats | Comfort Access | M-Steer Wheel w Pdle Shift |Sports 8-Speed | Active Crus Stop/Go | Proff Nav + TV, DAB | 16 Spk Ind Audio | USB |Internet-eMail-SMS-Apps | 4 Zone Air | Speed D/play | Towbar | 20% Tint | 5mm Castor Bushes | Yellow Calipers, Ceramic Pads |