Under the rust in sunroof post you @LordOxygen has queried the 201 BHP of his car in relation to lack of acceleration in 4th & 5th gears. The BHP of a car if correctly geared determines maximum speed whereas torque determines acceleration: What does Torque in a Car do? – Starts With A Bang The handbook for my 09 reg. 2.4EXi quotes max speed in 5th as 140mph. The brochure quotes: 0 to 62 mph as 7.8 sec. Max. Torque 230 N.m @ 4200 RPM and Max power 201 PS at 7000 RPM. Thus for max acceleration need to drop to gear which gives about 4200 RPM. I find third gear best on two lane roads for which max rated speed in handbook is 85mph ie well in excess of speed limit.