The crew takes eight weeks to develop a meticulous plan to steal over $150 million. One million dollars in $100 bills weighs 22 pounds; $150 million weighs 3,300 pounds. Jackson describes how the crew will transfer the currency from the loading dock of building D to two Can Am ATVs, and then load the money into a Toyota Prius.
A single duffel bag like those used in the movie to transport the cash is about 36x12x12 inches, or 5,184 cu in. A stack of $100 bills totaling one million dollars is 689 cubic inches. $150 million in $100 bills totals 103,350 cu in, requiring 19 bags, give or take. The remaining two crew members, Bullet and Jan, unload a maximum of 9-10 bags from the armored truck onto the ATVs, about $70 million or 1,655 pounds of cash.
Even with the reduced amount of cash, they would be unable to get away with the currency. The highest-end Outlander X MR 1000R Can Am like those used in the movie has a rear rack that can carry a maximum weight of 200 lbs. The maximum recommended weight that a Prius can carry is 835 lbs.
Despite all their planning, they didn't do some basic math. The most they could have stolen using this equipment would have been $18 million. Their scheme is doomed to fail before they begin.