In a recent report, electric vehicles magazine Electrek has revealed that Tesla CEO Elon Musk has sent an email to employees, seeking their help in testing the company’s self-driving technology.

Tesla Motors presently has efforts underway to develop its self-driving program. As part of the move, the US-based electric vehicle maker is leveraging the work that it has done on its Autopilot software as well as the data collected through its electric car fleet.

According to the email sent by Musk to employees, Tesla requires “100-200 employees” for testing its full self-driving technology.

Musk has revealed in the email that Tesla employees who purchase new electric cars will get premium interior packages, along with free Enhanced Autopilot and Full Self-Driving Capability package upgrades, which are priced between $5,000 and $10,000.

In lieu of the benefits being offered to employees who buy new electric cars, Tesla wants the employees to commit to the sharing of hundreds of hours of driving feedback with the company. The feedback from employees will enable Tesla to make improvements to its self-driving technology.

The latest move by Tesla marks an apparent expansion of a program which the company already has in place for employees and some customers to gain access to new software and give their feedback, before a broader release of the software.