The V6 engine has played a funny role in American automotive history. For domestic product, the V6 represented–at least for a time–a response to high fuel prices and and, on a grander scale, the passing of an era. For import products, V6 engines meant stepping up into the mainstream, and competing head on with domestic makers in the massive midsize sedan market, and later the burgeoning SUV/crossover segment. What we have here are five ads openly celebrating the charms of V6 motoring. It’s worth noting that the V6 engine that once seemed like so much of a compromise is now being replaced by even more-efficient small-displacement turbocharged 4-cylinder mills. In fact, neither the Chevrolet Malibu nor the Ford Fusion is available with a V6 engine anymore.