There was a time when buying a Mazda meant embracing the old-school joys of driving. Sharp steering, a rev-happy engine, and the sort of handling that made even the daily crawl down the PIE feel vaguely entertaining. But times have changed , and the new Mazda 6e Fastback marks a departure from that formula, because for the first time, Mazda's answer to the future isn't another clever petrol engine. It's an electric car. A Mazda that looks like a Mazda And not just any electric car, mind you. This is a sleek, rear-driven fastback designed to take on the likes of the BYD Seal and the Hyundai Ioniq 6, as well as the Tesla Model 3. In short,…