BMW put a pause on deliveries in recent months due to an issue with braking systems affecting 1.5 million cars, with over 300,000 of those being vehicles yet to be delivered to customers. Although they are working through the affected vehicles there will inevitably be delays in getting vehicles to customers. There is no guarantee that your vehicle will be delivered before the end of the year, but we would suggest staying in regular contact with the dealer and contacting BMW UK to see if they can offer more information.