Lexus car rentals in Palermo

Rented a Mercedes A-3 at the Palermo Airport. Pick up process was chaotic as in normal in Italy. I read that you want to make sure you have sufficient damage coverage so that you don't have to fight with them if something happens to the car. When I rented the car on line, I was directed to Allianz where I purchased trip insurance and car rental damage and theft coverage for $77 with a maximum benefit of $75,000. When I picked up the car at the airport, the agent told me I had no insurance coverage. I ended up purchasing the super damage waiver and a few other extra coverages ( probably not needed) which I now determine to be about $225 so the whole insurance coverage cost me about $300 while the cost to rent the car for a week was $500. Also, the Kayak estimate showed estimated taxes, fees and surcharges at $140 but the road tax and surcharges were $160 plus a 22% VAT of another $205. So what I expect to be a total rental cost of $830 ended up being $1135. Despite the pricing issues, the car was great and the drop off process was easy.