As you know, the systems in modern cars are controlled by electronic modules. Due to the variety of car models and variants of extras and equipment at their disposal, the modules are trained to drive differently. For example, cars made for the US market use a different radio frequency, different dimensions (imperial system), and have a number of different requirements - from the car's lights, warning systems, tank tightness, all the way to a system to reduce ozone in the air by the water radiator. Here we've listed the most frequently requested features and extras you'd like us to unlock or change the way they work.