1. Check field ID e.g.

a) Visit Vehica Panel > Custom Fields

b) Edit the "Text Field"

c) Check ID in the URL e.g. here it is 6671

2. Find Card files

3. Add code below with ID of the field you already got (here 6671)

<?php
$value = get_post_meta($vehicaCurrentCar->getId(), 'vehica_6671', true);
if (!empty($value)) :?>
<div>
<?php echo esc_html($value); ?>
</div>
<?php endif; ?>