The BMW X7 xDrive40d has an 80-litre tank, a 152 mph top speed, will reach 62 mph in a claimed 5.9 seconds, seats seven and ...

We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

Dimpled pistons might sound strange, but some say they could be the future for diesel power. We've looked at the arguments ...

Julie Young is an experienced financial writer and editor. She specializes in financial analysis in capital planning and investment management. Robert Kelly is managing director of XTS Energy LLC, and ...

Speaking of which, the CX-60 is still powered by either a gasoline or diesel engine, both offering a displacement of ...