Quote Originally Posted by Squashed_Fly
You may well be right. I can't work out though, why would you reimburse a company car driver for business mileage when they use a fuel card and don't pay it out of their own pockets? Surely that would mean the company can claim back an extra penny, not the car driver?

Or am I missing something?

There's more than one scheme for company car drivers and people who use their personal cars on company business. If you get paid fuel expenses above the HMRC rates it's treated as a benefit in kind and you will get taxed on it. Your company should declare it on your P11d.