Comparing performance between SQL Server 2016 and Json.Net JSON parsing

Json.NET performance test script.cs

static void Main(string[] args)
        {
            string cars = @"[ {""year"":2001,""make"":""ACURA"",""model"":""CL""}, ... ]";
            Stopwatch stopwatch = new Stopwatch();

            // Test #1
            stopwatch.Start();
            var deserializedCars = JsonConvert.DeserializeObject<IEnumerable<Car>>(cars);
            stopwatch.Stop();
            long elapsedMillisecondsDeserialize = stopwatch.ElapsedMilliseconds;

            // Test #2 & #3
            stopwatch.Restart();
            var queriedCars = JsonConvert.DeserializeObject<IEnumerable<Car>>(cars).Where(x=>x.model == "Golf");
            stopwatch.Stop();
            long elapsedMillisecondsQuery = stopwatch.ElapsedMilliseconds;

            // Test #4
            stopwatch.Restart();
            var serializedCars = JsonConvert.SerializeObject(deserializedCars);
            stopwatch.Stop();
            long elapsedMillisecondsSerialize = stopwatch.ElapsedMilliseconds;

            // smaller data
            string carsSmall = @"[ {""year"":2001,""make"":""ACURA"",""model"":""CL""}, {""year"":2001,""make"":""ACURA"",""model"":""EL""}, {""year"":2001,""make"":""ACURA"",""model"":""INTEGRA""}, {""year"":2001,""make"":""ACURA"",""model"":""MDX""}, {""year"":2001,""make"":""ACURA"",""model"":""NSX""}, {""year"":2001,""make"":""ACURA"",""model"":""RL""}, {""year"":2001,""make"":""ACURA"",""model"":""TL""}]";

            // Test #5
            stopwatch.Restart();
            var deserializedCarsSmall = JsonConvert.DeserializeObject<IEnumerable<Car>>(carsSmall);
            stopwatch.Stop();
            long elapsedMillisecondsDeserializeSmall = stopwatch.ElapsedMilliseconds;

            // Test #6
            stopwatch.Restart();
            var serializedCarsSmall = JsonConvert.SerializeObject(deserializedCarsSmall);
            stopwatch.Stop();
            long elapsedMillisecondsSerializeSmall = stopwatch.ElapsedMilliseconds;
        }