Group 1 Automotive's quarterly earnings rise

DETROIT, Feb 23 (Reuters) - Car dealership Group 1 Automotive Inc. on Thursday posted higher-than-expected fourth-quarter profit, boosted by improved margins.

The Houston-based company said earnings rose to $16.2 million, or 66 cents per share, from $11.2 million, or 47 cents per share, a year earlier.

Wall Street analyst, on average, expected 54 cents a share, according to Reuters Estimates