Swapping a manual transmission into a Mercedes 300SD turbodiesel transforms how this classic drives. Here’s what the conversion involves, why it changes the car completely, and whether it’s worth ...

There are engines with reputations for being able to rack up over 500,000 miles with steady maintenance. Among those, Mercedes-Benz and its diesel engines are legendary. Here, we look at one of them ...

It's been a while since you could get a diesel S-Class variant of any sort, even though the automaker periodically threw a bone to fans of oil-flavored cars during the past couple of decades. The W126 ...