Have made request for this to Emblem - so will be able to see like for like once they come back to me on this.
Had a price of £2950 for this service from Greypaul Edinburgh (my nearest main dealer):
The 4th Service on the GranTurismo is a major one and covers the following items. Replacement/change of:
Engine oil
Oil filter
Air filter
Pollen filter
Charcoal filter
Brake fluid
Water pump belt
A/C compressor belt
Power steering fluid
Coolant
4 lambda probes (Exhaust O2 sensors)
There is also a 4 wheel geometery check and adjustment due at this service.
The total cost for this service is £2950 inc all parts, oils, labour and VAT