Automobile sales continued to decline in April, with sales in the first quarter of 2011 plunging by 48.4 percent overall, while the decline in the sub-category of passenger cars reaching 49.1 percent, according to figures released on Thursday by the independent Hellenic Statistical Authority (ELSTAT). According to the statistics service, 46,740 car registrations (new or used cars from abroad) were recorded in the period January-April this year, posting a 48.4 percent decline from the corresponding period in 2010.