That seems way too low for even a small SUV. Once you add 'zero deductible' insurance I'm sure you'll pay around $900 for 11 days ($80/day and up). For that low price, including zero deductible insurance, you may get a small economy size hatchback.
Check www.autoeurope.com, entering the same dates (make sure you click on 'no deductible coverage'). Maybe if you unclick 'no deductible' coverage you might go as low as you say, but then you may be liable for the 1000 to 2000 euro deductible in case of damage, and believe me, they will find some damage when you return the car, they always do, that is why I only select the 'no deductible' option.
If you don't select the 'no deductible' make sure your credit card covers it in Italy (not all do), because even a small scratch will result in hundreds of $$ to pay up to the deductible (which is at least 1000 euro), which you may not claim to be reimbursed with your credit card.