Currently in Testing is the Electronic version of the Dealers Guide Vehicle Pricing Guide. 
Our Windows 95 Software (which is only available to the trade)  
enables  you to analyse car sales data in a number of ways such as:
 
                  Estimated current price of a particular car make/family/model/year. It can also
                  produce a graph of Price vs KM so that the effects of mileage on current value can
                  be determined.
                  Regression curve analysis to look at price trends in the past and predict future
                  values. This produces a graph of Price over Time.

      Car selection is by Make, Family, Model, Year and Region. If a current valuation is sought, only the
      most recent sales are analysed. If it is a rare car, then an option is given to expand the time period
      back to include more data points in the analysis. If trend analysis is sought then a time period can be
      specified over which as much data as possible is extracted to make sensible predictions.

      Data is collected from our dealer customers and then put through a rigorous filtering process to
      ensure accuracy of data and consistency in terms of Make/Family/Model names. The combined
      database is continually updated and new versions are posted on this web site for our subscribers to
      download. Because we are dealing with actual individual car sales, the dealer supplying the data
      remains anonymous.

 
Sample Graph from the Dealers Guide Windows 95 Software.
 
info@dealersguide.co.nz