Possible Clues:

• Are all these people wheeler-dealers? They blooming well are
• That's the blooming class of people you get on the road
• Oscar Wilde wore a green one
• That's a blooming motor race
• Transport people make a bloomer
• Look in 23 across for such motoring people
• People going by private transport are in the pink
• In this the flower would become flesh
• A pink vehicle seen before the race
• The flower of the American people?