What is it?
It's a chance for fans of the superb Ford Fiesta ST either to wince and shake their heads or sit up straight and take notice, depending on how they like their hot hatches.
We did the latter when Mountune announced it was hiking the ST's power from 180bhp to 212bhp back in 2013, and the results were good. For 2015, Collins Performance has somewhat raised the bar. You see, its ST, in this state, produces 270bhp and 265lb ft.
This actually represents the third and final tier of CP's ST upgrade packages. A new Mongoose exhaust, Airtec intercooler, ITG induction system, CPE turbocharger and revised ECU mapping are your rewards for choosing to laugh in the face of tiers one and two.
The cost for going this big? A full £2965, including fitting and a discount if you let CP keep your old turbo. Our car was also fitted with the firm's Dynamic Chassis upgrade, which swaps the ST's standard front wishbone and rear beam bushes for stiffer ones, and costs a further £440.
This sort of power from a 1.6 petrol is nothing new - see Peugeot's RCZ R - but that's a car that relies heavily on its limited-slip differential. So how does a similarly potent but slippy diff-less Fiesta ST get on?