Acquire Reasonable Automotive Financing Interest Rates at Minchin GMC. Acquiring automotive lending does not have to be difficult. Lessen the headaches with Minchin GMC. If you're anxious about your credit score, don't be. Credit history is accounted for at our STAMFORD dealership, but below-average credit does not necessarily indicate you won't be eligible for a loan. Submit our finance form and find out if you are eligible for a loan.