Hmm I fell into that addiction in June this year. After many years of being sensible and boring and driving a diesel, I went and bought a 2013 Fiesta ST.
Still a reasonably economical car when you want it to be.
It's twice the power of anything I've had before, however it's a bit embarrassing having to explain that though the car is 180bhp, it overboosts to 200bhp for up to 20 seconds.
I've yet to find myself anywhere full throttle for 20 seconds however.