I had a scuff like that on the bottom of my front bumper, I assume the chin of someone's front bumper just scraped by mine as it took a little of my top (lacquer) coat and left a little of it's own colour behind. 90% of it rubbed out with some magic "G3" polishing paste my nice neighbour gave me.
I found that all of my stone chips were suffered in the first 4 months, and none since - as if the car's paint had an extremely long curing time to get to full hardness/toughness.
Speaking of stonechips - anyone in need of a TR paint touch up set?My R will be here in 6 weeks, and so i'm assuming I will not be doing any more touch up. A token amount via Paypal to cover the postage is all I will require (or local Tyneside pick-up).