Trust me. Once you have had the oprion of a Visibility pack you will not want to go without. But like when Air con first came out. All cars will have this within 3 or 4 years. All you do is leave the lights and wipers on at all times, then when it gets dark or you go into a tunnel they switch on, when it gets light they switch off. THe wipers detect how much rain is on the screen so move as fast as is needed. This is geat when you get really light rain as they just clear the screen when needed. The rear view mirror turns into a set of sun glasses when you get someone behind at night, kind of a