Aerospace startup Boom says they've proven quiet supersonic flight is possible with their passenger airplanes after a ...

make your brakes stop better, and much more. HOT ROD will also let you know about the latest products and trends in the DIY muscle car building arena.

At the MotorTrend How-To section, you’ll learn how to perform the car improvements you want to do, thanks to DIY knowledge on how-to make an engine more powerful, improve a suspension ...