It does seem built for economy to me with urban at 37mpg and a combined of 48.7 and 10.1 seconds to 60. Interestingly on the M Sport the Max output (kW/hp/rpm) 90/122/6000 Max torque (Nm/rpm) 160/4250 As the power band is so high up the RPM range I would...
Fit fast road cams
Get a panel air filter fitted
Full sports exhaust with a sports cat
Fuel Pressure boost valve
Lower ratio gearbox
Derestricted - usually via a remap
This should improve your 0-60 time and help increase performance.