Yes, there is a 12-rotor engine — here's how much HP it's trying to push

Could there possibly be a rotary engine with 12 rotors? The answer is yes, and here's everything we know about it including ...
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This Fiat 124 Spider build has an unlikely engine swap. Here's how it happened

This custom 124 Spider ditches its 1.4-liter engine for something even better. The owner tells us how the project came to life. The Fiat 124 Spider is the Mazda Miata’s oft-forgotten Italian sibling.
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10 Motorcycles To Consider For A Custom Chopper Build

Modifying motorcycles to make more speed by reducing weight is a tradition stretching back to before WWII. These "bob jobs" or "bobbers" strip anything not necessary, leaving a lighter and nimbler ...