The ultimate pie-eater's car? You're walking down the street, minding your own business. For once, you're not thinking about cars. Suddenly, you hear it: a low frequency, menacing rumble. The sound bounces off nearby buildings and hits your synapses like a football drilled into the back of the net. It's the burble. For a red-blooded pistonhead, the thrill created by a proper barrel-chested burble is irresistible. Involuntarily, your head swivels to identify the machine producing this mechanical siren song. It's a… BMW?
C'mon. TVRs burble. Old-fashioned muscle cars with engines that burst from their bonnets like biceps through The Incredible Hulk's shirt, burble. Well, so does the BMW M5. From the moment you turn the key, the 400 horsepower M-power plant burbles with as much conviction as a Shelby Cobra. The M5 may look like a mildly tweaked version of BMW's bread and butter barge, but it isn't. Anyone with ears knows this car is a serious piece of kit.