One by one, vehicles with BMW’s soulful naturally aspirated inline-six are biting the dust. As expected, BMW has announced that the 2013 X3 xDrive 28i crossover will swap the 3.0-liter inline-six for a turbocharged, 2.0-liter four. (Based on our experiences with the latter engine so far, it’s also pretty good, if not as linear as [...]