Nobody tows with an Audi or BMW in the US. People here tow with an F150, which is equipped with an incandescent bulb in front of a chrome-plated plastic reflector.
1. Pickups are comparatively very popular in the US.
2. The US has more stringent regulations for towing than the rest of the world; a vehicle rated to tow 2000lbs in EU often is rated to tow nothing at all in the US. [0]