2021 Mercedes AMG GT Roadster (86 dB)Muscle cars are some of the first vehicles that come to mind when you think of noise, and while the 2021 Mercedes AMG GT Roadster isn't part of the American muscle family, it's part of Germany's answer to it. The AMG GT, whether in roadster or coupe form, is Mercedes' premier two-door sports car that sits near the top of the brand's lineup. The AMG GT Roadster is a brutish German workhorse that relies on a 4.0-liter twin-turbo V8 to produce its guttural 86 decibel growl. The performance figures reflect AMG GT Roadster's sporty DNA as well, reaching 60 mph in 3.4 seconds and crushing the quarter mile in 11.5 seconds.If the AMG badge isn't enough to warn you of this car's rowdiness, its design should be. To produce its 469 horsepower, the engine needs a hefty supply of air to keep it cool. To efficiently feed the engine cool air, the AMG GT Roadster breathes through a gaping Panamericana grille that gives the car an aggressive expression. The rear haunches are wide and muscular, and the cockpit sits behind a long hood that evokes memories of the wild SLS AMG. The key feature of the Roadster, though, is its lack of a roof, allowing drivers to hear all the ruckus.2017 BMW M3 Competition (88 dB)Compared to the AMG GT Roadster, the 2017 BMW M3 Competition adds two doors, and two decibels. It may be a sedan, but make no mistake: The M3 Competition is a serious car. BMW's Competition variants take the already powerful M cars and push their performance to the edge, often with a disruptive soundtrack. Powering the 2017 M3 Competition is a 3.0-liter turbocharged straight-six making 444 horsepower — 19 more horsepower than the regular M3. The engine revs to 7,000 RPM, and shoots the M3 Competition to 60 mph in four seconds flat.Continuing on the theme of German muscle cars, the M3 Competition's looks are as aggressive as its sounds. The 2017 model is part of the F80 generation and wears the brand's signature angel eyes headlights along with wide fenders and 20-inch rims. To match the upgraded power numbers, the M3 Competition boasts a stiffer, more performance-oriented suspension that makes you forget you're going that fast in a four-door car. The exhaust note is angrier than the regular M3, and it roars to 88 decibels when you plant your foot to the floor.1995 Ferrari F50 (104 dB)The oldest car on this list, the 1995 Ferrari F50, was ahead of its time in many ways, including its ability to produce a racket. The descendant of the legendary F40, the F50 was Ferrari's flagship supercar of the '90s, built following the design and engineering cues of Ferrari's successful Formula One team. It followed the Formula One DNA so closely that the F50 came without power steering or an ABS system, but what it did come with was a naturally aspirated V12 that achieved max power at 8,500 rpm.The F50 made 512 horsepower and reached 62 mph in 3.8 seconds. The F50 was penned by the masters at Pininfarina to preserve Ferrari's elegant design language, while pairing it with aero elements to keep this weapon of a car stuck to the ground. All F50s were designed as targas as well, meaning owners could remove the roof panel for an open-top driving experience, and hear the F50's 104 decibel roar from the cockpit.