Review: Dinan Signature Series S3 BMW 550i

BMW 5 Series Shows Grace Under Fire

  • 542 Horsepower
  • Enough torque to haul a 20-foot Airstream trailer
  • Surreal handling and formidable power packaged in a Giorgio Armani suit

Dinan knows engines. With t... [read more on eBay’s Motor’s blog]

Dinan Signature Series S3 BMW 550i