Officially, the Tesla Model S has a combined electric range of 335 miles (539.1 km) according to the EPA - and that's with the air conditioning on, taking common driving habits into account. Recently, someone managed to nearly double the range of the Model S thanks to some conservative driving, clocking up an impressive 560 miles (900 km) on a single charge. However, Tesla CEO Elon Musk was confident that a 1000 km run would be possible on the right tires. And now, just a few weeks later, he's been proven right.

Tesla Owners Italia has officially smashed the previous record, making the Tesla Model S the first production electric car to exceed 1000 km on a single charge, thus setting a new world record. Impressively, the group of five Italians managed to drive 669 miles (1,078 km) on a single charge using a standard Tesla Model S 100D with only minor modifications. The standard grippy tires were replaced with a set with low-rolling resistance, but other than that the Model S was left completely stock. It's safe to say, though, that the record was achieved in abnormal driving conditions. In total, the uninterrupted road trip took 29 hours to complete with a blistering average speed of 25 mph.

Yes, that's 29 hours of continuous driving. Without the comfort of air conditioning or having the windows down during the peak of summer when the record was carried out. It may not be representative of real world driving conditions, but it's an impressive feat nonetheless as electric car ranges continue to improve.