This was posted on facebook recently;
**CAR PARK UPDATE** Message from BMR Promotion. Please be assured there are on-going negotiations with the Highways Department and the water company to reach an agreeable solution to the current surface conditions affecting our valued fans. There are issues with drainage, and it's not a case of simply placing Tarmac over the visible problem. We are seeking a long term solution not a quick fix which will result in many years of happy parking to come.
I think the problem has been that the car park is owned by Thames Water and they haven't been very cooperative in the past, hence the many temporary quick fixes in the past.