£297 x 36 = £10,692, plus deposit is £11,192 you are spending.
£10,992 loss in depreciation.
Add them up and thats £21k your loosing over 3 years. Sure some of that is depreciation, which most cars will have, albeit at varying rates. The rest is interest on the loan etc, but either way, its still £20k over 3 years.
As I said, each to their own, if your happy with that then fair enough, but id be either looking at a cheaper way of getting the cash, or buying something which wouldnt depreciate as much etc.