Oh, the Tesla works fine. You can have hundreds of miles of range... all you have to do is get a gas or diesel generator on a utility trailer to pull behind it. Run the generator while you're rolling down the road, and voila.
As usual, the guys over at Top Gear are all over it:
The car is redesigned and named the "Hammerhead Eagle i-Thrust." The redesign includes extra batteries, along with a diesel generator to recharge the batteries while the car is in motion. The presenters then took their new car to the MIRA Proving Ground in order to test whether it would pass the EU-required tests that would make the car road legal. The tests consisted of a two crash tests to test safety, a drag race to test speed, a cobbled road to test ride comfort, a steep hill test and a quality test around the MIRA test track, in which the presenters used various tricks to have their car "pass", including using the three presenters as crash-test dummies and crash-testing the car at a very low speed and playing back in fast-motion; cheating at the pendulum test by raising the pendulum from the car and then playing the footage in reverse, and having the car tested by an "independent test driver" (James wearing a fake moustache). The car is also taken for an endurance test by "the Stig's vegetarian cousin" (who is entirely green, has solar panels on its helmet, and wears sandals) - who is killed after 35 minutes by fumes from the generator after the exhaust fell off.