I'm going to assume you meant to say 252bhp
The published dyno curve isn't accurate. Peak torque (228lbs/ft) is usually seen at around 3,500rpm. It's the same for power. Similarly, peak power (220hp / 217bhp) is more like 6,300rpm rather than 5,750rpm.
For the record, this makes next to no difference to how the car peforms if I run the claimed dyno curve against my own car's stock dyno results through my calculator:
220hp @ 5,750rpm / 228lbs/ft @ 2,500rpm
0-30mph 2.50
0-40mph 3.36
0-50mph 4.81
0-60mph 6.07
0-70mph 7.96
0-80mph 9.95
0-90mph 12.12
0-100mph 15.23
0-110mph 18.67
0-120mph 22.81
0-130mph 29.47
0-140mph 39.08
0-150mph 58.44
Top Speed 153.5 mph / 247 kph
60ft 2.56
330ft 6.42
1/8 Mile 9.59
1000ft 12.32
0-400m 14.55
1/4 Mile 14.61
0-800m 22.70
1/2 Mile 22.79
1km 26.32
1 Mile 36.61
My car in 2004/2005... 220bhp @ 6,300rpm / 217lbs/ft @ 4,00rpm (even higher than yours!)
0-30mph 2.50
0-40mph 3.35
0-50mph 4.80
0-60mph 6.07
0-70mph 7.81
0-80mph 9.81
0-90mph 11.99
0-100mph 14.52
0-110mph 18.20
0-120mph 22.36
0-130mph 27.71
0-140mph 37.35
0-150mph 57.61
Top Speed 155.6 mph / 250 kph
60ft 2.56
330ft 6.41
1/8 Mile 9.56
1000ft 12.28
0-400m 14.49
1/4 Mile 14.55
0-800m 22.56
1/2 Mile 22.65
1km 26.16
1 Mile 36.30