BMW's startling unveiling at the Detroit Auto Show in three weeks (three weeks!) will include all-wheel drive versions of the 5 Series sedan and new sport wagon. The 525xi, 530xi and 530xi sport wagon feature the same AWD system, or as BMW calls it xDrive, as the X3 and X5 SUVs. Now I know BMW has had xi models before but all this xDrive and iDrive stuff is getting annoying. Can't we just all be happy with calling it AWD? Sheesh. Oh and there will be new 6-cylinder engine variations too. Hold me back fellas.