The BMW M3 Convertible (E46) was presented at the Detroit Motor Show in January 2001, although production had already started in April 2000. It differed significantly from the BMW 3 Series standard with flared wheel arches, a specially contoured front apron with large air scoops and a bulge (power dome) in the engine hood. The model upgrade carried out in February 2003 was extremely subtle and was only identifiable by the new LED taillights and a dynamic brake light. A total of 29,633 units were sold and the majority of these cars (17,577) went to the USA. Another 7,234 vehicles were righthand drive cars.