二手车的架构

Question

我需要向列出二手车的网页添加架构。我不清楚要使用以下两种架构中的哪一种（均为schema.org推荐）

报价架构

    <script type="application/ld+json">
    {
      "@context": "http://schema.org",
      "@type": "Person",
      "name" : "Brent",
      "makesOffer" : {
            "@type" :"Offer",
            "priceSpecification" : {
                "@type" : "UnitPriceSpecification",
                "priceCurrency" : "USD",
                "price" : "18000" },
            "itemOffered" : {
                "@type" : "Car",
                "name" : "2009 Volkswagen Golf V GTI MY09 Direct-Shift Gearbox",
                "description" : "2009 Volkswagen Golf V GTI MY09 Direct-Shift Gearbox in perfect mechanical condition and low kilometres. It's impressive 2.0 litre turbo engine makes every drive a fun experience. Well looked after by one owner with full service history. It drives like new and has only done 50,000kms. (...)",
            "image" : "2009_Volkswagen_Golf_V_GTI_MY09.png",
            "color" : "Black",
            "numberOfForwardGears" : "6",
            "vehicleEngine" : {
                "@type": "EngineSpecification",
                "name" : "4 cylinder Petrol Turbo Intercooled 2.0 L (1984 cc)"
                },
            "numberOfAirbags" : "6"
            }
        }
    }
    </script>                    

产品架构：

    <!-- Seller Details -->
    <div>
      <strong>Contact Name: </strong> <span>Brent</span>
      <div>$18,000</div>
    <!-- Car Details -->
      <div id="product">
        <strong>2009 Volkswagen Golf V GTI MY09 Direct-Shift Gearbox</strong>
        <p>2009 Volkswagen Golf V GTI MY09 Direct-Shift Gearbox in perfect
        mechanical condition and low kilometres. It's impressive 2.0 litre turbo engine 
        makes every drive a fun experience. Well looked after by one owner with full     
        service history. 
        It drives like new and has only done 50,000kms. (...)</p>
        <img href="2009_Volkswagen_Golf_V_GTI_MY09.png" />
        <p><strong>Color: </strong>Black</p>
        <p><strong>Number of gears: </strong>6</p>
        <p><strong>Engine:</strong>
                   4 cylinder Petrol Turbo Intercooled 2.0 L (1984 cc)</p>
        <p><strong>Number of airbags: </strong>6</p>
    </div>

有人可以帮我理解区别吗？