Related Clues:

• "Ultimate driving machines," in an ad
• Upscale autos
• GTs and Kadetts
• They have four-ring logos
• BMW rivals
• High-end German cars
• Astra and Antara
• Sporty German autos
• Q5 and Q7
• Upscale imports
• Alternatives to Porsches
• 507s of the '50s, e.g.
• Mercedes alternatives
• German cars
• Q7 and R8, e.g