How long after driving BMW cars cool down?

The time for a BMW to cool down depends on various factors, including the ambient temperature, the engine's temperature when you turn it off, and how much coolant and/or oil remains around the engine. For most modern BMWs, it typically takes around 15-30 minutes for the car to reach a temperature close to the ambient conditions. However, it is important to note that some components (such as turbochargers and catalytic converters) may take longer to cool down fully, especially after strenuous driving. It's always a good practice to let the engine run for a few minutes at idle before turning it off to facilitate better heat dissipation.