You know it when you hear it: the grumbly, all-too-unmistakable sound of an approaching Subaru and its characteristic flat-four-cylinder engine. Since the mid-1960s, the boxer engine has been a ...

Engine sound is a highly debated topic. Some prefer the V8 rumble of American muscle cars. Others swear by high revving V10 and V12 engines. Turbo fans love their whooshing noises, regardless of the ...