The guys over at Motor Authority have a great new test drive video of the 2013 BMW M5 & M6 at Laguna Seca. We haven’t gotten our hands on one yet, but from our experience test driving of the new 2012 BMW 335i we can only imagine how awesome it must be. Looks like the M6 only comes with the M-DCT dual-clutch gearbox where as the M5 has both a M-DCT dual-clutch gearbox and 6 speed manual options.

“One key difference, from a driver’s perspective, is that the M6 comes only with the M-DCT dual-clutch gearbox; the M5 can be