This excerpt taken from the HTZ DEF 14A filed Apr 12, 2007.
Retirement and Savings Benefits
We have adopted retirement, savings and post-retirement assigned car benefit plans. Benefits under some of those plans are broadly available to our employees, while others are restricted to executives. We feel these plans promote retention of our key executives and other participants by providing a reasonable level of retirement income reflecting their careers with us. We believe such plans are customary in the industries in which we operate.