Goodyear Tire & Rubber's (GT -13.76%) quarterly earnings came in better than expected, but the company still has a lot of work to do before it returns to the fast lane. Shares of Goodyear traded down about 13% as of 10:30 a.m. ET after the company detailed the challenges it sees up ahead.A bad year for tire demandThe automotive market is sputtering, which is having an impact on demand for tires. Goodyear reported fourth-quarter earnings of $0.47 per share, beating the $0.36-per-share consensus thanks to str ...