So, your Pontiac Trans-Am is no longer as bitchin’ as it once was, and you want to return it to glory with a fresh coat of paint? Fantastic news, but mixing auto paint isn’t as straightforward as one ...

Once upon a time, most cars used to ship with single-stage paint, where the color top coat went on over the primer and was buffed up to a glossy shine. They’ve since fallen out of favor, with ...