Car Rental Fees

I rented a car this weekend because my wife's family was in town.  We needed something that could carry 6 of us, and we only have two Corollas, so we rented a minivan. 

I rent cars a lot when I travel (although not always).  I have noticed there are a lot of fees, but today, since I was personally responsible for the cost, I looked, I mean REALLY looked at the fees.  This is what my receipt looked like.

Base Rate $120.00

$4.28/day fee $8.56

11.11% fee $13.44

FTP SR$0.50DY $1.00

Taxable subtotal $143.00

Tax 8.000% $11.44

*8% Surcharge $10.68

Total $165.12

So, my base rate was $120.00, but the cost to me was $165.12.  That's $45.12 in fees, or 38% of the base fee!  What the hell is a 11.11% fee?  It's like a phone company stacking on hidden fees until you don't even know what you're paying for!!!

Couldn't the $4.28/day fee be factored into my base rate?

If this is "standard" on every rental, shouldn't the rentals simply BE 11.11% higher? 

What the hell is an FTP charge?  It's only $0.50/day, but it's not clear at all what the $1.00 is for.

And why isn't the 8% tax rate ($11.44.) the same as the 8% surcharge ($10.68)?!?!?  It seems like 8% is 8%, so shouldn't they be the same?  

I won't boycott Avis on this, simply because they do treat me well, and I think $160 for two days with a nice minivan (Chrysler Town and Country) isn't a terrible deal.  It's just that it seems misleading to quote one price as the base price, and then add so many fees that the base price isn't even recognizable.  

In the future, I may just ask to borrow a friend's car, though.