My TCO for my 2003 Toyota Sequoia has been $70 a month. I paid $8,000 for it 3 years ago and have paid $500 in maintenance (standard scheduled maintenance plus $60 in repairs). I pay $23 dollars a month for liability insurance. Depreciation has been approximately $1,200 (at worst). I'm not so sure I'd own anything but a larger (safety) Toyota (reliability) that old, but just wanted to provide some anecdata.