Launching this autumn, the site will offer new services, so that users can request quotations, contact sales and post comments online.
The home page has six main areas covering fleet-buying and management advice. Other sections offer services for existing customers and aim to attract new ones. The site will also explain other brands beyond those owned by DaimlerChrysler.
Neil Miller, managing director of dna consulting, which created the site, said: "The brief was to redevelop and modernise in order to reflect the dynamic, innovative nature of the business."