Yea its was fine in the end, still have the same RR, I went in it about 1 hour earlier (but a little to the right and it wasn't so deep there, the next time I went to the left it was a lot deeper, tried to keep a "Bow Wave" going but like you say it was coming over the top, but way too much, the car actually floated, and then the cab started to fill up, then as it was sinking (like a ship) the wheels touched the ground and i reversed out at speed, lucky I had insurance on the gearbox so it wasn't too bad, most of the computer dried out and was still usable, just changed the one, and I got that for just a few ££ starter motor burned out (it wouldn't turn off) so I was kinda lucky in that it could have cost me a lot more £££ than it did