Merc’s new E-class arrives in 2009, and should be very, very clean. Merc’s Bluetec technology, which squirts urea (basically the toxins found in your pee) into the exhaust to cut NOx emissions dramatically, should be available on all its diesels. The petrol engines will gradually get more and more of the technology first seen in the F700 concept car at Frankfurt last month, though the full Diesotto technology probably won’t appear until the next generation S-class. However, a petrol-electric hybrid E400 should join the line-up in 2010. Also coming in 2010 is the E300 Bluetec hybrid. Combining clean diesel and hybrid technology the electric E will apparently emit only 134g/km, a figure more commonly associated with small hatchbacks. Following on from the latest C-class, the E will adopt more boxy styling inside and out. It’s Mercedes’ attempt to remind us of the impregnability of the 1980s and early 1990s Mercs.