Some of you are probably getting tired of watching comparative reviews of the Renault Clio RS and the Ford Fiesta ST, but this one is different, as one of the cars is not stock. Ford started offering the Mountune performance pack in the UK for the Fiesta ST and Drive wanted to find out how this changes the Fiesta ST’s acceleration.

Priced at £599 (US$905 / €690), the Mountune kit boosts the output of the 1.6-liter turbocharged engine from 182PS (180hp) and 240 Nm (177 lb-ft) to 215PS (212hp) and 320 Nm (236 lb-ft) respectively. On paper, this means the Fiesta ST Mountune sprints from 0 to 100 km/h (62 mph) in 6.7 seconds, and the 50 to 100 km/h (31-62 mph) acceleration in fourth gear is now 0.7 seconds quicker, at 5.7 seconds.

The Mountune package brings the Fiesta ST more power than the Clio RS (197hp/200PS) and more torque (+80 Nm/59 lb-ft), while still being cheaper than the Renault. Is this a no-brainer? Well, you’ll just have to watch the video below to find out.

By Dan Mihalascu

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