1. Aston Martin Vulcan
Recently introduced, the Aston Martin Vulcan is arguably the best looking machine the British automaker has ever created. For a brand that has built its reputation by teaming up with James Bond, the Vulcan is likely more car than 007 would ever need. Using a 7.0-liter naturally aspirated V12 engine designed and developed in collaboration with Aston Martin Racing, the Vulcan has more than 800 horsepower and a completely carbon fiber chassis. This track-only supercar will be limited to just 24 units worldwide and comes with carbon-ceramic disc brakes matched to Brembo racing calipers. Oh yeah, did we mention it costs around $2.3 million?
2. Dodge Viper ACR-X
The track-only version of the Dodge Viper ACR was built to commemorate the end of the second-generation Viper. Named Viper ACR-X, the purpose-built race car was powered by an 8.4-liter V10 engine mated to a six-speed manual transmission, packing 640 hp and 605 lb-ft of torque. Fully adjustable suspension along with staggered 18- and 19-inch wheels paired to Michelin slicks helped make the Viper ACR-X one of the most venerable cars to ever hit the track. Just how good did it perform? It turned in a Nurburgring lap time of 7:03.06, good enough to make it the third-fastest track-only car ever.