Tesla Model S owner Bruno Bowden recently set a new world record for the longest distance driven on a single charge, 425.8 miles (681.28 km). The record was announced at the TED2013 conference in Long Beach by Elon Musk.
At this stage, it's not known what route was taken but we do know that in order to reduce aero drag an average speed of 18 mph (29 km/h) was maintained throughout the 24 hour trip.
The world record for a Tesla Roadster on a single charge was 347.2 miles or 555.5 kms set in 2011 on a on a closed circuit in California, again achieved using a low average speed of only 25 mph (40 km/h)
Both these Tesla records actually beat the Guinness World Record from 2009 of 345 miles (552 km) but this distance was far surpassed by the same Japanese team in 2010 at 626.00 miles (1,003.184 km) using an EV converted Daihatsu Mira microcar.