Spainish ccar sales are showing definite signs of decline, the national vehicle manufacturers' group ANFAC has said after releasing provisional data for new car registrations in July. As a result, ANFAC said, its forecast for total unit sales for 2000 will probably be revised downward. New car registrations totaled 150,140 in July, down 6.59% on the 160,737 recorded in July 1999, ANFAC said.