save-car.php

<?
    $data = $_POST;

    extract($data);
    include_once '/connect.php';

    $created = Date("Y-m-d H:i:s");
    $sql = "INSERT INTO `cars` (model, speed, year, body, country, created) VALUES ( '$model', '$speed', '$year', '$body', '$country', '$created' )";

    $result = $pdo->query($sql);
    var_dump($result);