Is it possible for a Tesla Model X Long Range to beat Lucid Air’s estimated EPA range of 517 mi? James Klafehn was not even aware of that range back in October 2019, but he thought he could get very close to that number while towing with his electric SUV. You’ll undoubtedly scratch your head with that: the Model X has already proven it loses range while towing. The secret here is the T-Rex camper Klafehn developed with an 85 kWh battery pack.