The cold weather means just one thing: it’s officially coat season. From puffer styles to leather staples, it’s time to invest in outerwear that can prop up your wardrobe during the winter months.

There’s the rear window from a Jeep Wrangler and a hand-built, panoramic roof from a new Blazer, while the whole car sits on a third-generation Toyota Tacoma’s chassis. Other cosmetic changes include ...