Starting this fall, all new 2011 Buick Regals will have flex-fuel capability. The first boatloads of Regals from Germany have begun rolling off the docks in New Jersey in the past week and are being sent out to dealers. The first several months of Regal production will all be powered by a gasoline-only version ofGeneral Motors’ normally aspirated 2.4-liter inline four.Once the 2.0-liter direct