They didn't take worst case mileage, they took mileage on their track. They said, quite clearly, in the show, that it would have only gone 55 miles on their track. It was being driven like a maniac, they clearly showed it being driven hard, they're not a walking tesla advert pretending that it'd go 211 miles at top speed.
The 3 day journey reference was debunking claims you could charge it with wind power and again was clearly stated in the segment of the show. It's specifically addressing claims tesla are making, from their own literature:
The Roadster, which consumes no oil whatsoever and plugs into conventional 220-volt sockets throughout Europe, can be charged with solar, hydro or wind energy.
The 3 day journey reference was debunking claims you could charge it with wind power and again was clearly stated in the segment of the show. It's specifically addressing claims tesla are making, from their own literature:
The Roadster, which consumes no oil whatsoever and plugs into conventional 220-volt sockets throughout Europe, can be charged with solar, hydro or wind energy.
http://www.teslamotors.com/about/press/releases/tesla-debuts...
See other reviews spouting pie-in-the-sky about how the tesla could be recharged by renewable energy:
http://www.topspeed.com/cars/tesla/2011-tesla-roadster-race-...