What happens when you try to build a functioning car engine using only parts from a budget shopping app? One Florida TikToker put Temu to the ultimate test—and against all odds, it actually worked.

This is the age of horsepower. Power masters build giant-cube big-blocks and play with exotic CNC-machined billet blocks with custom bore centers, tomato-can-sized bores, and yard-length strokes. But ...

Turbos and superchargers have made extra power almost easy to come by. Thanks to them, even tiny four-cylinders can make the type of numbers that used to be reserved for big-displacement engines. That ...