Retailer Sonic Automotive has reported that 2004 fourth quarter operating income of $20.5 million, or $0.48 per share, compared to $19.6 million, or $0.46 per share, a year ago. Net income was $14.6 million, or $0.35 per share, compared to $13.8 million, or $0.33 per share in Q4 2003.