Tesla Model S owners better hope that this article is wrong. Could you imagine having to replace the drivetrain on a Tesla after only sixty thousand miles? Survey data collected by Plug-In America from current early-model Tesla Model S owners has predicted that up to two-thirds of early model electric-drive units may fail by 60,000 miles. If their predictions are even remotely accurate, that’s bad news. As reported by Green Car Reports, the sample data was run twice with the information they collected from early Model S owners.