<prompt> Bhala ukuqhubeka kwalesi sigaba - Ngemva kokuphumelela kwakhe ku-1950 RAC British Grand Prix  <response>: U-Parnell wasayinwa yi-Aston Martin, wathatha i-DB2 endaweni yesithupha ku-24 Heures du Mans, ehambisana noCharles Brackenbury wesibili ekilasini. Lokhu wakulandela ngokunqoba ekilasini okwesine jikelele ku-RAC Tourist Trophy, eyayizungeze imigwaqo emincane yaseDundrod. 