AUTOS

Chrysler Seeks Extension of Credit Line: Chrysler Financial Corp. asked its Chemical Bank-led lending group this week to extend a $6.8-billion line of credit by two years. The company’s revolving credit line, which is largely drawn down, matures next year. In return for the extension, bankers said, Chrysler is willing to increase the interest rate at least one percentage point and pay hefty fees. Chrysler must pay a higher rate because its credit ratings have fallen to junk-grade levels and its prospects are uncertain. The corporation now has no direct access to the capital markets and cannot refinance bank lines with non-bank sources of credit.