At the 2008 Geneva auto show, Brian Cooley takes a look at BMW's new Diesel Hybrid system on the X5: a clean-burning engine that still surprisingly packs a lot of punch.
CNET Car Tech posts video on the BMW X5 Twin Turbo Diesel Hybrid from the 2008 Geneva auto show.
We lay out the good and the great of what's available in today's truck market.
The 2014 Mazda6 i Grand Touring outshines much of the competition in the battle for your midsize sedan dollars, hitting most of the right marks, but some of its luster is dulled by the more powerful and efficient turbo-diesel and i-ELOOP models just around the corner.
Web video of the new turbocharger inside the 6.7L Power Stroke V8 Turbo Diesel.
A twin-turbo diesel helps the BMW X5, but how much can you really "greenify" a 5,225-pound vehicle?