"Drive Happy" car rental company (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
alamo
(Other definitions for alamo that I've seen before include "Texas fort, scene of famous siege by Mexican army" , "Mexicans invested in Texas" , "Mission building in Texas, site of famous siege by Mexico" , "The red planet" , "Texan battle" .)