21 July 2014, 3:06 pm
High-tech TDI engines that provide economy and performance sit at the heart of the Audi brand's values and technological DNA. As Audi marks a quarter century since it debuted TDI, Calum MacRae takes a look at Audi's strategy to develop TDI powertrain technology further to meet tighter future CO2 emission targets and the need for still higher efficiency from internal combustion engines.
21 July 2014, 1:15 pm
General Motors made changes to redesigned ignition switch parts on four models in 2003 and 2004 but did not ensure that older, potentially faulty parts were taken out of circulation, the automaker said in a filing with US safety regulators made public on Friday.
21 July 2014, 12:45 pm
Ignition switch problems are continuing to plague General Motors. Over the weekend, it was reported the automaker had earlier this month ordered Cadillac dealers to stop selling some versions of the CTS model range because it does not have a fix yet for cars recalled in late June over an issue where engines can be shut off if the driver's knee bumps the ignition key.