Question
 

Is it possible to change my financial company after one year?

If you can find someone to refinance your now "used car," you should be able to change financial institutions any time -- and as often as you like. Rates on used cars are often higher, though.

Mike

Thank you, and do you recommend any auto financial companies?

I do not. :)

But, if you've got decent credit, why not start by checking with your credit union, if you have one. Or, go to bankrate.com and research lenders with good used auto loan rates.