Tesloop has been using a Tesla Model S 90D, nicknamed eHawk, to provide a shuttle service in southern California and Nevada for the last 3 years. The eHawk has driven more than 400,000 miles and maintenance and repair costs have been estimated to be roughly 20-25% that of other makes and models.
Since 2015, the eHawk has been driving around 17,000 miles per month, racking up 400,000 miles in just under three years. This makes it the Model S with the highest recorded mileage in the world. Tesloop have been kind enough to provide a Google spreadsheet detailing the cost and mileage of the eHawk’s maintenance and repairs.
In 3 years, the eHawk has had two battery replacement. The first replacement occurred in August 2016 at 194,237 miles but apparently could have been postponed if a firmware update had arrived earlier. The second battery replacement occurred in January 2018 at 324,044 miles when the car was serviced for a non-battery related issue. The battery degradation was estimated to be ~6% and ~22% for the first and second batteries, respectively. This was due to the car using Tesla’s supercharger network multiple times a day, charging over the recommended amount (95-100% instead of 90-95%).
Other services carried out include the replacement of the front drive unit (occurring at 36,404 miles), sunroof calibration, driver door handle assembly replacement and a number of tire replacements and wheel alignments. The costs for replacing the batteries and front drive unit were covered by Tesla.
According to Tesloop, the total maintenance costs amounted to ~ $19,000, around $0.05/mile. This was compared with estimates for a Lincoln Town Car and Mercedes GLS Class for the same amount of mileage of $ 88,500 ($0.22/mile) and $98,900 ($0.25/mile), respectively.
Tesloop also uses a number of Tesla Model X cars for its shuttle services and found that they have a similar maintenance cost/mile. All of the cars have an 8-year warranty and Tesloop believes that the eHawk can drive another 600,000 miles before this runs out.