Chris - I had a similar problem of petrol vapor when filling up, but the rubber gasket for the sender was the issue. It seems that lead free petrol has a bad effect on the rubber, which causes it to harden and crack. It is worth having a gasket as a spare in your garage and replacing it every two years or so. My gasket was falling to bits when I replaced it.
Piers
R300KWK
A yellow 7 on the A24 at 3:30 near Horsham. I also saw a grey/black 7 on the M23 and one other which I can't remember what colour it was - old age. So three 7's seen from Selsey to Canterbury this afternoon. A nice day for it.
Piers
R300KWK
I must have been in the same jam on the M40 yesterday, caused by a truck breaking down by J9. It held me up for about an hour on my run home from Oldbury to Canterbury. However, no sign of that 7. It won't be as clean as it shows on PH, as it was chucking it down some of the time.
Piers
R300KWK
On Monday about 4:00 pm, soon after John Surtees had run his F1 cars down Edenbridge High Street, once the road opened, a yellow 7 with 2 up drove past in the rain.
We had been watching the Fun Day parade.
Piers
R300KWK
Today, looked blue or dark green with black nose band just north of the A27. Only a glance as you passed in the shade just before a roundabout.
Piers
R300KWK
What looked like an all Orange Super Sport with Aero on the M6 north bound at 5:15 pm and seen as you pasted Corley, heading north. Crash hat on. I was southbound on the way back home to Canterbury from Scotland - 10 hrs. Looked very nice.
The only 7 spotted on a 1100 mile round trip.
Piers
R300KWK
Hi Andrew,
That car (GN05KMZ) which is an R300 SV, was parked next to mine at the IOW Blat and I have a photo, but no idea how to put it on here.
Piers
R300KWK