Related Clues:

• Astra maker
• 'Would you look at that?!'
• Kadett automaker
• Ten C-notes
• "Fancy that!"
• "I'm impressed!"
• "Shucks!"
• "Go right, mule!"
• Exclamation in 17, 23, 50 and 61-Across
• "Oh my!"
• 'You don't say'
• "No kidding!"
• "Good golly!"
• Awed one's reaction
• Take the right course