HANOVER, Germany (March 10)—Continental A.G. reported a slight increase in sales last year to $10.7 billion with the sales gain coming entirely in its automotive systems division. Sales in the passenger tire unit fell 6 percent last year, while the commercial vehicle tire and ContiTech industrial products divisions reported slight sales declines. The company didn't report earnings at this time. The automotive systems division posted a 14.6-percent sales gain to $4.31 billion, because of overall growth and the 12-month consolidation of results from the Continental Temic vehicle electronics business, Continental said. Passenger tire division sales fell to $3.56 billion because of lost sales from the divested British retail chain National Tyre Service and weak replacement market business in the U.S. and Mexico. Commercial tire sales fell to $1.24 billion, while ContiTech's sales dropped to $1.66 billion, largely because of the sale in the past year of some minor business units.