Wrapping the roof?

[highway]

The Mrs has a black Mini One. I've put one mirror caps on and white bonnet stripes. It looks good.the roof has a number of scratches that I've failed to mop out. I'm considering a white gloss wrap for the roof only. This will be much cheaper than painting and hopefully give the same result.

Anyone done it?

Any drawbacks?

I'm guessing around £100?