Tom Nelson on Instagram: "Our 632 Hot Rod Series will surprise you with how lightning-fast it revs. This is a hydraulic roller, pump-gas engine you can drive anywhere—even with the A/C blowing in traffic—and it has a torque curve that’s almost as flat as a ruler. This engine never produces less than 700 ft-lbs of torque from 3,500 to 6,300 RPM, with a peak of 804 ft-lbs."

Wealth on Instagram: "You don’t just hear the Mazda 787B, you feel it. 😳 The howl of its 4-rotor Wankel engine is so unique it became legendary in motorsport. Unlike conventional piston engines, the rotary spins in a continuous motion, firing with unmatched frequency and producing a pitch so piercing it’s been described as mechanical music. It’s the reason the 787B became the only rotary-powered car to ever win Le Mans, cementing its place in racing history. Love Cars? Follow @Wealth 🚗✨ #Mazda

Exploring the Sounds of Vintage Engines