The V6 is a very compact engine design. It is shorter than the straight-4. Many V6 engines are narrower than the V8 engine. They work well and are well suited to the popular transverse engine front-wheel drive cars. It has largely replaced the inline-6, which is too long to fit in many modern cars. It is more complicated and not as smooth as the inline-6. The V6 is more compact, and more rigid, but also more prone to vibrations. It is also becoming a high performance engine. It has high power and torque output like the classic V8, but has good fuel economy.