The TomTom XXL 530S and XXL 540S devices enable users to always drive the smartest and most efficient routes, whenever or wherever they go. The TomTom XXL 530S and XXL 540S include TomTom's exclusive IQ Routes technology. The technology is based on historical speed measurements for every time of day and for every road segment, from large highways to small local roads. In up to 35% of all cases, the use of IQ Routes results in driving a faster route, saving significant travel time, money and fuel.