Vacation rental: best amenities - offer use of a car?

[Marissa Myers]

I'm looking to buy an investment property in the desert of CA, for high end renters who come for tennis and Coachella. I want my property to stand out among the others, to maximize occupancy in both the high- and off-season. 

1) What amenities are most desirable for my target market?

2) What if I offered the use of a car (my car, kept in the garage)?   

I don't see that a car is typically offered in vrbo/airbnb listings. Doubtless this opens up a can of insurance worms, but it's also a major value add, and solves a pain point for renters. They can uber from airport, then use my car.  

Any and all opinions welcome on how to cost-effectively create a highly desirable 3/2 party house in a competitive market.

Thanks!