LONDON : The Cadillac team set to debut in Formula One next year has at least six names on a list of potential drivers and will decide on merit, principal Graeme Lowdon said on Monday. The General Motors-backed team secured final approval last week for their entry as the sport's 11th outfit on the starting grid, providing a green light for discussions about the future line-up. "The obvious question is whether we'll have American drivers and personally I see no reason why an American driver can'