Get Total Count of Car Makes: Get the total number of car makes. You can use filters to get subtotals (e.g. give me the total number of new cars)
Get Details on a Specific Car Make: Same as the first endpoint but this one returns relevant information for a specific car make. The information can also be narrowed down with filters.
Get a List of Car Makes: You can get the entire list of car makes or use some basic filters to return the array of car makes you’re interested in.
These three endpoints provide all the necessary data.
http://api.edmunds.com/api/vehicle/v2/makes?fmt=json&year=1995&api_key={vehicle api key}
http://api.edmunds.com/api/vehicle/v2/honda?fmt=json&state=used&api_key={vehicle api key}
http://api.edmunds.com/api/vehicle/v2/makes/count?fmt=json&state=new&api_key={vehicle api key}