If I had unlimited funds, I would be tempted to stick in a GTR 997-based Cup
car drive line..

  ABS, traction control, and a six-speed sequential tranny..Couple that to
the water cooled proven motor at around 500 hp..What more could a Van guy
with waay too much spendable  funding want?
  They also offered a few years of AWD cars, the Carrera 4(?)..
  The problem is, the gears would not for long take the extra weight of
moving a Van at ~4000lbs as opposed to the Porsche racecar at 3000..Of
course, back to the "unlimited funds" and who cares...build a spare, keep
one at the shop all the time, like the rich-guy racers do..
  Don Hanson