I would say save your money....you will be on the losing end of all of this especially with $800 per month insurance. If I had to pay that for my Diablo, I would get rid of it ASAP. I don't owe anything on it, but still...$800! Phew!
I think I pay about $55.00 bucks a month for my Diablo with StateFarm.

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1992 Lamborghini Diablo
1992 Ferrari 512TR