Morning Overview on MSN

10 Porsche buying red flags that can cost you big

Buying a used Porsche can feel like a shortcut into the sports-car world, but hidden mechanical problems can turn that dream ...
Engineering Explained on MSN

Variable valve lift vs variable valve timing - VVL vs VVT

What is VVL? What is VVT? How does VVL/VVT work? What is variable valve lift? What is variable valve timing? We're going to ...