Why bother buying a Ferrari Enzo when you could just rent one for $7595 a month? Well, maybe you'd want to buy it because the car isn't going to depreciate, and if anything will gain value over time. But Putnam Leasing makes their strange case anyway in this article by listing their ten hottest leasable cars. Number four is the Porsche Carrera GT at $6295 monthly; number seven the Rolls Phantom at just under $5K for a month of use. I suppose these numbers are relative pittances to the people who can actually afford these cars, but it seems a few of the vehicles on the list could be smart investments if purchased.