The Focus RS RX is built on the Focus RS, with a tuned 2.0L (1,983 cc) turbocharged inline-4 engine, with power output rated at 600 hp (447 kW) and torque output rated at 664 ft·lb (900 N·m).
Equipped with a six-speed manual transmission and weighing less than 2500 lb (1134 kg), the Focus RS RX is capable of doing 0-60 mph (97 km/h) in less than 2 seconds, faster than even the Porsche 918 Spyder and Dodge Challenger SRT Demon (regardless of whether or not rollout comes into play).
The Ford Focus RS RX is a rallycross car and, as such, is made for offroad racing. It has an extremely fast 0-60 mph (97 km/h) acceleration time of 1.9 seconds, which outclasses even hypercars like the Porsche 918 Spyder, Ultima Evolution Coupe 1020, and Bugatti Veyron Super Sport; this is a trait typical of rallycross cars primarily due to their AWD drivetrains and the need to get a great start off the line especially on dirt tracks. The Focus RS RX's astounding acceleration is also evident in its 5-second run to 100 mph (161 km/h). The only car that has a faster acceleration to 60 mph (97 km/h) is the Hoonigan Ford "Hoonicorn" Mustang, with 1.8 seconds.
The Focus RS RX handles and brakes really well, especially off-road. Despite these handy performance advantages, the Focus RS RX is best used for tracks with a lack of long straights, as its top speed is rather low at 144 mph (232 km/h) and its overall gearing is very short, a trait typical of rallycross cars.
The Ford Focus RS RX is featured on the cover art for the Blizzard Mountain Expansion.
When playing the Blizzard Mountain Expansion for the first time, the Focus RS RX is used when the player drives to the Blizzard Mountain Festival for the first time.
The Kingmaker race forces the player to use the Ford Focus RS RX, regardless of whether or not they have the car.