https://api.edmunds.com/api/vehicle/v2/toyota/models/count?state=new&fmt=json&api_key={api key}

{
	"modelsCount": 23
}

https://api.edmunds.com/api/vehicle/v2/toyota/models/count?view=full&state=new&fmt=json&api_key={api key}

{
  "modelsCount": 23,
  "models": [
    {
      "yearsCount": 2,
      "niceName": "sequoia"
    },
    {
      "yearsCount": 1,
      "niceName": "fjcruiser"
    },
    {
      "yearsCount": 1,
      "niceName": "priusplugin"
    },
    {
      "yearsCount": 1,
      "niceName": "matrix"
    },
    {
      "yearsCount": 1,
      "niceName": "tacoma"
    },
    {
      "yearsCount": 1,
      "niceName": "landcruiser"
    },
    {
      "yearsCount": 2,
      "niceName": "camry"
    },
    {
      "yearsCount": 1,
      "niceName": "rav4ev"
    },
    {
      "yearsCount": 1,
      "niceName": "sienna"
    },
    {
      "yearsCount": 2,
      "niceName": "yaris"
    },
    {
      "yearsCount": 1,
      "niceName": "priusc"
    },
    {
      "yearsCount": 1,
      "niceName": "rav4"
    },
    {
      "yearsCount": 1,
      "niceName": "corolla"
    },
    {
      "yearsCount": 1,
      "niceName": "highlanderhybrid"
    },
    {
      "yearsCount": 1,
      "niceName": "4runner"
    },
    {
      "yearsCount": 1,
      "niceName": "avalon"
    },
    {
      "yearsCount": 1,
      "niceName": "prius"
    },
    {
      "yearsCount": 1,
      "niceName": "tundra"
    },
    {
      "yearsCount": 1,
      "niceName": "highlander"
    },
    {
      "yearsCount": 1,
      "niceName": "priusv"
    },
    {
      "yearsCount": 1,
      "niceName": "venza"
    },
    {
      "yearsCount": 2,
      "niceName": "camryhybrid"
    },
    {
      "yearsCount": 1,
      "niceName": "avalonhybrid"
    }
  ]
}