|There are two things that make the Radical SR8 RX different from an F3 Race car. It has two seats and is street legal. Other than that, this car is a pure, track-destroying, masterpiece with enough FIA compliance to ensure you can race it for years to come. Its top speed of 178mph is reached extremely fast and the car sticks to corners like glue, sticky glue. Braking is equally impressive and without fade. Since this car is intended to be raced, it is fully adjustable from its pedal position to the damping rate. The Radical SR8 also holds the current fastest lap for a production car at the longest and most challenging race course, the Nurbürgring. If that doesn’t impress you, take it for a spin and find out for yourself.|
— Official description 
The 2011 Radical SR8 RX is a track toy by Radical featured in Forza Motorsport 4 and all subsequent Motorsport main series titles, although it was only available as part of the Alpinestars Car Pack in Forza Motorsport 5. It also appears in Forza Horizon.
Requires the Alpinestars Car Pack
Purchase from the car dealer for 330,000 CR or 550 T
Performance & Body Family
Ultimate Track Toys
Top Speed: 175.5 mph (282.4 km/h)
0-60 mph (0-97 km/h): 3.200 secs.
0-100 mph (0-161 km/h): 5.500 secs.
60-0 mph (97-0 km/h): 81.1 ft (24.7 m)
100-0 mph (161-0 km/h): 201.0 ft (61.3 m)
60 mph (97 km/h): 1.45 g
120 mph (193 km/h): 1.85 g
Purchase from the Autoshow for 300,000 CR
Performance & Body Style
|RXC Turbo · SR8 RX · SR8 Supersport|