Mercedes-Benz USA photoMercedes-Benz USA photoMercedes-Benz USA photoMercedes-Benz USA photoMercedes-Benz USA photoMercedes-Benz USA photo Luxury convertibles are a special breed, taking all the things people love about premium cars and throwing in an open-air driving experience into the mix. Few do this better than Mercedes-Benz, as the facelifted-for-2021 E 450 (formerly known as the E 400) …