Help Save My Car From Repo

I'm a 64 yr old man who had some business setbacks. These put me in arears with the Wells Fargo bank, who are now seeking to reposses my vehicle unless I pay $1200 in back payments. They do not accept partial payments in the case of repo. My income from my little business can finally now handle the $250 monthly payment, but not the accumulated $1200 payment during the time my business was tanking. That's why I'm asking for help.