Road - Mystery pic 2

Crikey, I think I've started something! Yesterday's mystery photo flummoxed a few folk, so here's another clue. And no, it doesn't have a sun-roof, this is actually a shot of the interior headlining! I've got two correct 'entries' so far.

But what will I be driving to Fort Augustus tomorrow? I'll need to wait till the rain (sorry, Scottish summer sunshine) stops to get a picture.