DrCrowTStarwars said:

The 12th Doctor is really reminding me of Pertwee.

Yes and Clara is somehow morphing into Jo Grant!

btw Capaldi is supposed to have said the look is based the 'Thin White Duke' era Bowie costume...

No doubt Capaldi saw this ^ at last years extremely popular Bowie exhibition. I guess the Doctor Who costume department added the Pertwee red lined coat to complete the look. The exhibition ran at almost exactly the time Capaldi would have been told he'd got the gig and the same time he'd be looking round for inspiration.