Avis Budget ( CAR) initiated at Goldman Sachs: Goldman is initiating coverage on CAR with a Buy rating and $27 target. Company positioned to take advantage of structural changes in car rental industry , with stronger pricing in 2007/2008, and moderating fleet costs in 2008. Camden Property Trust ( CPT) upgraded at Morgan Stanley: Morgan Stanley upgrades Camden Property Trust from equalweight to overweight with an $84 price target. Digital Insight ( DGIN) downgraded at AG Edwards: AG Edwards downgrades Digital Insight to sell, as it believes a higher bid seems unlikely at this point. Endo ( ENDO) upgraded at Jefferies: ENDO upgraded to Buy rating from Hold at Jefferies. Price target lifts to $35 from $33. 2007 EPS estimates upped to $1.73 from $1.65. Group 1 Auto ( GPI) upgraded at Wachovia: GPI was upgraded to Outperform at Wachovia. 2007 earnings guidance will likely prove conservative, as the company should be able to manage sales and inventory during a difficult environment. Gap Stores ( GPS) downgraded at AG Edwards: AG Edwards downgrades Gap Stores to sell from hold and believes the stock has downside to $15 if the stock trades on fundamentals. Garmin ( GRMN) downgraded at Merrill: GRMN was downgraded from Buy to Neutral at Merrill Lynch. Estimates also cut through 2008, as the company will face increased competition at the retail level over time.