Grudge Match: Cadillac CTS-V Coupe vs Shelby GT500 Home » Grudge Match: Cadillac CTS-V Coupe vs Shelby GT500 Posted on 6 August, 2010 Cadillac CTS-V Coupe faces off with the Shelby GT500 in a drag race. Musclevehicles.com – The Ultimate Blog for American Muscle Cars and Muscle Vehicles