State Bank of India said on Friday it will freeze interest rates on new car loans at 10 per cent for a year.The new rates will be applicable to all customers availing loans between February 23 and May 31, 2009, the bank said.After the freeze-period, the rates will be reset at the applicable card rate contracted as on the date of sanction under the respective schemes, the bank said. Remember, SBI will be the sole booking agent for Tata Nano.