<section class="prodinfo"> Информация о товаре</section>
    <section class="mainproduct">
        <?php if(!empty($createday)):?>
        <section class="maininfo"><div class="bth">Дата изготовления:</div><div class="bthvalue"><?=$createday." ";if(!empty($createmonth)){echo $createmonth;}?></div></section>
        <?php endif;
        if(!empty($topspeed)):?>
        <section class="maininfo"><div class="bth">Максимальная скорость:</div><div class="bthvalue"><?=$topspeed?></div></section>
            <?php endif;
            if(!empty($country)):?>
            <section class="maininfo"><div class="bth">Страна:</div><div class="bthvalue"><?=$country?></div></section>
            <?php endif;?>
        </section>