 RTE.ie | Clunker law gains traction: Ford sales jump; Chrysler, GM, Honda ... Detroit Free Press July sales increased from a year earlier for such models as the Chevrolet Impala, Pontiac G5, Pontiac G8 and Pontiac Vibe, which goes out of production this ... 'Cash-for-clunkers' program drives Ford sales higher Cash for Clunkers boosts Ford's July sales 1.6 pct |