Hi Gareth,
I will take the car to my local car tyre specialist who may be able give me some answers here in respect of tyres / pressures etc
In terms of load usage, the maximum is me the wife and teenage son who occasionally sits in the back, however, when we first picked up the car yesterday, there only me and my mate who has an earlier model who noticed the slightly harsher ride.
Mileage is high eg 155,000 but she drives like a 50,000 car.
Thanks
Andrew