A turbocharged performance hatchback naturally lends itself to tuning, and Ford specialist Mountune has done exactly that with the Ford Focus RS. Focusing primarily on improved breathing and software optimisation, the upgrades include a custom-developed air filter, an upgraded air recirculation valve and a new alloy crossover duct with high-performance silicone hoses.

The changes result in higher outputs of 375 hp and 510 Nm of torque – gains of 25 hp and 40 Nm respectively – with the 12-second overboost function in place. The 0-100 km/h sprint now takes 4.5 seconds, while top speed remains as before at 266 km/h. The upgrade work will take approximately 90 minutes, and will cost £899 (RM4,757) in the United Kingdom.

Rivals include the VW Golf R, Mercedes-AMG A 45, and Audi RS3, with the Mercedes of this trio charting the highest output at 381 hp. As standard, the Focus RS produces 350 hp and 470 Nm of torque to all four wheels, transmitted via a six-speed manual gearbox. Among the Focus RS’ features are stall recovery, which restarts the stalled engine upon depressing the clutch, and Drift Mode, which gives the driver computer controlled assistance in sustaining a drift.

GALLERY: Ford Focus RS